I'm shocked that Bosh isn't in this conversation. Pau was my favorite power forward but if he's a center that's fine. I'd rather have Bosh in the modern game than Kemp. Or Blake Griffin. Probably above LMA. A slot below Brand and/or Sheed. That's where I'm at, at least.
I'd also say Rasheed is the second best defensive power forward in this draft 
Yeah I think we're probably underrating Bosh in this discussion thus far, but to some degree I think it's a result of his fairly understated game - so the conversation thus far reflects that.
Understated doesn't mean he has to be rated lowly! I actually have similar feelings about Bosh as I just posted with Amare. He was the guy as a center in Toronto alongside another Italian guy (similar to Amare!). He was at his best in Miami when he was a center with Lebron, Wade, and another wing who will probably be drafted at some point.
Bosh is a power forward perhaps in this league, but his best position practically is center. I'd probably make that argument for most of these other guys (Brand, Webber, maybe even Aldridge). By that definition maybe Rasheed is the actual best modern day power forward here.
I am not that high on Bosh. He had a strange unorthodox game. I am not sure it translates as well here.
That big Italian guy caused some stat inflation for Bosh in Toronto both in terms of scoring and rebounding. Partly because he didn't rebound. The scoring because he stretched the floor, forced opponents to defend Bosh with their opposing C in his most prolific scoring season.
Bosh had some difficulties as a scorer. He didn't have a great scoring arsenal. He had a lovely mid-range jump-shot and a great first step in driving to the rim. In order to maximize those two assets, he'd have the stop the ball. He was a ball-stopper. He stagnated the offense. He'd catch it and take 4-7 seconds sizing up his defend throwing some jab steps at him before trying to work out how to attack him. The reason for this is that he was miscast as a #1 scoring option and was more of a #2 or #3 scoring option but Toronto had such little scoring talent there that he was forced into being a #1 option.
So in a league like this where every team has a huge amount of scoring options, I'd expect Bosh to be a 4th or 5th option. I am not sure the exact team he is on here. But generally speaking, that is where I would place him.
Bosh had a good all-round game but not a great all-round game. He was a good passer but not a great passer. He was a good defender but not a great defender. He was a good rebounder but not a great rebounder. So the drop-off in scoring from being a 20-24ppg to being a 4th/5th option hurts because his non-scoring while good is not great.
Then the other issue is how talented the opposition PFs are. A lot of skilled quick PFs who generally punched above their weight against Bosh (in terms of respective reputations of Bosh vs opponent) while in Toronto. Mainly because Bosh was always a PF/C combo type guy. So some more natural PFs who were quicker or had more well rounded scoring games could bother him more than expected.
I loved those Toronto teams from 2006-2010. I loved Bosh. I watched them a lot. They were a lot of fun to follow.
They had that first iteration where Bosh would start at PF next to a big bodied center (who had a midrange jump-shot) but Bosh would finish games at C next to a combo forward. So he would split time between the two spots.
Then Toronto tried to pair him with an interior PF/C who forced Bosh to spend more time at PF which was their worst big man pairing of this period. Then came Marion at PF and Bosh at C which was their best overall big man duo. Then the Italian and Bosh who were both PF/Cs and allowed Bosh to play his best offensive ball but did not provide Bosh with enough defensive or rebounding help. So while Bosh flourished individually the team did not. Marion was the best big man pairing Bosh had over that 4 year period.
All of Bosh's best offensive basketball came with him playing more center minutes and forcing the opponent to matchup against him with their center. That is where he had more of a speed & skill advantage. He would have less of an advantage at PF although was still their best option because the team was so short of shot-creation.