Straight up Men's Warehouse. Probably because Coach K gave him a speech that went a little something like this, "I do not, nor does David Stern judge a man by the suit he wears. Think of yourself not as a number one draft pick who wears suits, but as a developing NBA superstar who just so happens to be the number one pick that wear suits. Your life will not be determined by the $100 suit you wear on draft night, because your card is American Express." Next up is Kenyon Martin.
The first and last highlight of his career was this custom made guy that he wore as he walked across the stage. Jordan probably dressed him in these threads, and continued to support him financially throughout his career, until His Airness incorrectly split 8's at the Belaggio last year. Next is Lebron, skipping Yao Ming because he did not show up for the draft, much like he continues not to show up in the playoffs.
The definition of ballin'. There is nothing to say, but all Hail King James. Not many people can pull this kind of suit off, then again not many people can score 48 against the Pistons either. Now for the Magic's Dwight Howard.