After scanning the usual internet suspects (wikipedia, basketball reference, etc.), it looks like Robertson has been listed at every position except center at one point or another in his career. The Big O was 6'5" back when that meant something, dad gummit!
Here's a question for you... If Jordan was the greatest player ever, then where does Robertson, who has comparable overall stats, rate?
Quick and crude comparison:
Robertson = 25.7 PPG, 9.5 APG, 7.5 RPG*
Jordan = 30.1 PPG, 5.3 APG, 6.2 RPG, 2.35 SPG, 0.83 BPG
* Steals and blocks were not kept officially until Robertson's last season. Anecdotal evidence suggests that Robertson would also have had slightly better numbers than Jordan in these two categories during their respective primes.
I guess this is sort of off-topic, but it generally aggravates me the way most people uncritically accept that Jordan was the greatest basketball player of all time. Very good, perhaps even better, arguments can be made for Robertson or Chamberlain.