I completely agree with the OP on this - Simmons IMHO is the clear #1 right now.
People are talking about Simmon's weaknesses as if Ingram doesn't have any.
Ingram is an absolute stick figure to the point where he almost makes RJ Hunter look muscular. How many twiggy guys have you seen come into the NBA in the past 10 years and develop into legit superstars?
I can think of one, and that's Durant. Yet Ingram is not even remotely in the same ballpark as Durant as far as talent/potential goes. Ingram is averaging 18.0 points, 7.1 rebounds, 2.1 assists, 1.1 steals and 1.5 blocks Per 36 in College this year. In his final year Durant averaged 25.8 points, 11.1 rebounds, 1.3 assists, 1.9 steals and 1.9 blocks Per 36.
Durant absolutely dominated the college game and it looked obvious from day one that he had the talent to become an NBA superstar. Ingram isn't dominating college nearly as much as Durant did - he's not dominating it at all really. He's just been really good. The numbers he's putting up do not look like the kind of numbers that project "future NBA superstar".
He obviously has talent, and he has a lot of potential (especially on the offensive end) but his lack of physical strength could be a major concern. He'll likely get pushed around on both ends of the floor if he doesn't bulk up in a huge way.
There are also question marks about his attitude. Does he have the personality of a go-to guy? Does he have that "killer instinct"? I guess we can make that same argument about Durant and he's done just fine, but as I said Durant was a whole other level of talented.
Ingram is IMHO a very high risk prospect. He's an excellent shooter, but guys who shoot great in college don't always become great shooters in the NBA. The things that do typically translate (like motor, rebounding, defence) Ingram isn't elite at. He could become a legit superstar, or he could just as easily become a major bust if his offensive game doesn't translate and he can't bulk up.
The big plus with Simmons is that he is a guy who has NBA ready skills right now. At only 19 years of age he already has the physical tools (6'10", 240 points, good mobility, 40" vertical) to compete at the NBA level.
He's already shown he can dominate the college game at multiple levels (19.8 points, 12.3 rebounds, 5 assists, 2 steals, 0.8 blocks, 56% FG). Even without a consistent jumpshot, his basketball IQ and quickness should make allow him to be instantly effective on the offensive end as a P&R finisher. He should also be an excellent rebounder in the NBA from the start, since that is a stat that almost always translates. He should also be one of the best passing big men in the NBA the instant he takes to the court.
I look at Simmons and I basically see Blake Griffin, but a bit less athletic and with much better handles.
The kid is almost certain to become AT LEAST a very good starter in the NBA given his athleticism combined with his ability to rebound, pass and finish in the P&R. At the very least I see him becoming a 14 point, 10 rebound, 3 assist guy and that is pretty darn good as a worst case. As a best case I can see him become a 20/12/5 guy, which is pretty close to Chris Webber territory.
People criticise his lack of a jump shot and his personality. Well think about Blake Griffin - he had no real jumper when he came into the NBA, and his personality is a question mark too. But he's still a superstar at the NBA level, and Simmons most likely will be too.
Can you imagine how deadly a Thomas/Simmons pick and roll would be? Or how dangerous Simmons could be in Boston's system (fast paced, lots of ball movement, lots of running in transition)? If he ever develops a jump shot, he could be THE perfect for for this team at the PF spot - a spot where we are currently quite weak and in desperate need of an upgrade.
I'd be happy taking a chance on Ingram as well if Simmons is gone when we pick, but if we got lucky (i.e. got the #1 pick) and had a chance to pick either guy, I would go with Simmons 100%.
Hield is much like Ingram - high risk, high upside. He could become a bust (Jordan Crawford) or he could become a stud (Bradley Beal) - it's very hard to pick which it will be at this point.
Bender basically looks like Toni Kukoc minus the scoring ability. He could be a nice fit on this team, but I'm not entirely sure how much upside there is. He's got size and he has mobility, but he's extremely skinny and will need to put on weight. He also hasn't played a lot of minutes in his Euro teams, so the small sample size makes it hard to gauge where his production should be. He has the skills to be an excellent NBA defender, but he is a pretty mediocre rebound and isn't anything special as a scorer. He might not have much (if any) more upside then Willie Cauley Stein....or he could surprise us and excel like Porzingis. Another very high risk prospect.
Jaylen Brown reminds me a lot of Jimmy Butler, and I think he's a nice prospect and a pretty safe pick. Not sure if he has the outright potential of a Simmons/Ingram/Hield, but he's a two-way player who can score, can shoot, has the athleticism to defend NBA guards, and has the strength and size to defend NBA small forwards. Might even be able to spend brief amounts of time as a four in small ball linups here and there (as Crowder does now). He could probably improve his basketball IQ and decision making a little, but aside from that I think he (along with Simmons) is one of the safest picks in the top 10, and should be a good NBA player.
Dunn should be a solid NBA player for years to come, but I don't think he has star potential. I see him as maybe an Eric Gordon type at best - not a bad thing to have, and I wouldn't hate it if we landed a guy like him with a 5th or 6th pick, because I think he could contribute right away. I just don't think he'll ever be more than a solid to good starter.
Murry is another guy who I feel should contribute in the NBA, but who I don't believe has potential to be more than a solid-to-good starter. Maybe a slightly better version of Michael Carter Williams is probably a good comparison.
Poeltl doesn't show star potential either, but he could be a really nice starting big man - I'm thinking he has Omer Asik written all over him.
Ellenson pretty much looks like David Lee 2.0 - again, no real superstar potential there, but could be a nice player regardless.
Demitrius Jackson could be a dark horse. His size is a bit of a limitation (6'1") but he looks like a guy with very legitimate star talent. Explosive athleticism, can score in a variety of ways, can pass the ball, high basketball IQ. The size doesn't worry me too much mainly because guys like CP3 and IT4 have proven that you CAN be a star player without size. Many teams will probably pass on him, but I think he is among the top talents in this draft and among the most likely guys to become a star. He honestly looks NBA ready from the get-go though, and I'd be all over him if we didn't already have so many PG's. He'll likely be a big steal for some team out there.
I don't think anybody else is (IMHO) worth that much of a mention really when it comes to the lottery.