something that you have to realize is Tyson boxed...and boxing is a sport
You might say Lee was an actor but he was a first-hand martial artist
boxing = sport while martial arts = life style....
Comparing boxing with martial arts is like comparing a paintball gun with a deagle
with that said...in a fight to the death Lee has both the physical and mental advantage over Tyson
True, Tyson may be wayyy stronger and heavier but I doubt he has the range or speed to do any real damage on Lee (not undermining Tyson's speed but asposted earlier, he has really nothing on what Lee's speed can do)
No matter how strong or big you are, a kick to the temple, throat, or any vital part of the body will off you in seconds and this is the field where Lee spenthis LIFE on. His striking options were endless
Strength: Tyson
Everything else: Lee
Winner: Lee