You guys must not watch much MMA.
Sorry but if Bruce Lee were alive today AND in his prime he'd get absolutely raped by numerous MMA fighters.
Actually, I watch a TON of mma...im an absolute fanatic of ANYTHING to do with fighting...ESPECIALLY mma.
While I agree that Bruce would definitely not dominate like he could back in his day, he would STILL be one of the top fighters in his weight division..if not, THE top.
What makes you think Bruce wouldnt do well?
And as for Muhammed Ali...GREAT boxer, but he would get destroyed by Bruce Lee...in a "no holds barred" fight of course(not in a boxing match)
Has anyone seen the Muhammad Ali vs. Antonio Inoki fight?
Inoki was a Japanese wrestler and get this...HE WASNT EVEN ALLOWED TO USE HIS WRESTLING AGAINST MUHAMMED ALI!!!!!!!!
WTF???
He also wasnt allowed to kick unless he was at least on his knees...
again, WTF??????????????
And the main thing is, Ali STILL had trouble fighting him!
Imagine the trouble Bruce Lee would give Ali in a real fight(bruce was a great grappler too so he couldve took Ali down...and we all know what happens to the boxers then since UFC 1 lol)
Here is the fight:
https://www.youtube.com/watch?v=VrXzH4WOUdc
Skip to 4:30.
The ref is also legendary grappler Gene Lebell...the guy who taught Bruce Lee his Grappling(although bruce also learned jiu jitsu and judo etc from other teachers)