Topics like this are why other fanbases and nba fans in general call us delusional. There's a reason Simmons was the #1 pick. True, his attitude and work ethic might not be great, but at the end of the day, talent wins out. And he's got plenty of it, and plenty of high end potential too.
this explains why simmons was the #1 pick. but it also seems to assume that being the #1 is proof of these assumptions. history speaks otherwise.
most #1s do very well, but not all. and a not insignificant number of #1s turn out to NOT be the best from the draft after a few years.
so, it is too early to decide this debate.
EDIT to add a few examples of #1 =/= best of the draft.
Noel (#6) > Bennett (#1)
Cousins (#5) > Wall (#1), debatable, but yes for some minds
Curry (#7) > Griffin (#1)
Westbrook (#4) > Rose, (#1), debatable again, but arguments can be made
Durant (#2) > Oden (#1)
Aldridge (#2) > Bargnani (#1)
Paul (#4) > Bogut (#1)
Pau Gasol (#3) > Kwame Brown (#1)