What about Dwight Howard?
Ughhhh....how awesome would it be to see a bulked up (yes bulked up) Dwight howard on the goaline.............. 6'11" bulked up probably around 290, sorry NFL corners. even if he's not that fast, still unstoppable. The thing is with basketball players, as much as they look huge on the court, they are relatively scrawny compared to football players muscle mass wise. If they started doing football type workout regimes ...good lord. I think lebron would come in as the ultimate prospect especially bulked up. I honestly think it would be him and Bo Jackson for best physical specimen of all-time, NFL-wise.
Lets put this in perspective. Calvin Johnson is pretty much the consensus freak of nature in the NFL right? 6'5" 235 with a 4.35 40 time and probably around a 40 inch vertical. Lebron James is 6'8" I'm guessing around a 4.45 to 4.50 speed over a 40" vertical and weighing in around 280(if he bulked up for the NFL). That is unheard-of from a prospect standpoint.
Although I believe he would be the ultimate prospect, I'm not arrogant enough to believe that he could just come in and dominate even with a full season under his belt. The game is fast, the nuances are subtle, the routes need to be crisp and the play books are something quite frankly, NBA players would have no idea about. basketball is much more a game of feel than football. I realize Lebron played high school football and was phenomenal, but the game is much more complicated than that in the NFL. Is he tough enough? Although I think he would have amazing ball skills, we can't know until we see him on the field(catching in traffic). The biggest knock on Lebron is toughness, how do we think he would handle his first Leron Landry hit over the middle? To be honest I have no idea how this would work out...but man I would love to see it.
Personally I think Atlanta hawk's power forward Josh Smith would be a guy I could most conceivably making the transition to football. He plays with a football mentailty as it is on the court anyway lol