Why does everyone think that Ricky Rubio will go either No.1 or No.2 in the 2009 NBA draft?

I mean Hasheem Thabeet is in this years NBA draft you know. Nobody knows too much about Rubio, but let me ask you this, when was the last time a legit supersized center get ped over by 2 teams in the Draft if they are #1 level based on potential. I know that last year, the Bulls ped on Beasley and took Rose, but that was ping on a forward. If you look back, even when Iverson was drafted it wasn't a legit Center being ped on. When it was comparing guards with centers, the year Michael Jordan was drafted Olajuwon went #1 and Bowie went #2. I admit that most of teams are interested in Griffin with the #1 pick, but there are several teams that may consider Thabeet based on his potential. But if Griffin goes #1, then why would a team be dumb enough to p on Thabeet, a 7'3 legit big man that doesn't come around very often rather than some guard who most have never even seen play. Most lottery teams don't even need guards, the Wizards already have Agent Zero but are weak at Center. The Warriors may like going small, but they already Ellis at PG, and they can go with Griffin at PF and Biedrins at Center. The Clippers haven't given up on B-Davis because he just needs good supporting players, why not go with Griffin who can play SF or PF and have Randolph or Thornton come off the bench. The Kings are the only ones that even may consider Rubio, but they have Udrih at PG and Hawes is better coming off the bench to give their bench more depth. So they would take a real legit big man either Griffin or Thabeet. Remember everyone thought the Bulls would take Beasley because of team needs last year, but they took the guy who they thought could have a bright future out of Rose and look how well that turned out.