why is this even a discussion to say an MMA fighter would get smoked by a top boxer in a boxing match is like saying a boxer would get smoke in mma match.
read an online artical about silva called killing the king. Strikeing in mma is very basic consisting of left right left right combos and basic jabs. Punches never seem to be doubled up in MMA. and that is one reason silva is able to doge so easily.
In most if not all his fight when he is doing the bobbing and weaving it looks impressive but the punches are almost always predictable left-right-left
if you watch the last combo in the fight you will see a right backfist by chris and this was the most important punch in the combo. after chris threw a right silva was expecting a left and the way he swayed if weidman had thrown a left it would have missed silva would have tkoed an off balance weidman and we would be talking about how great he is. However weidman hit him with a right back hand and caught silva by surprise throwing him off his game silva didnt know where to sway and he got caught with ko punch.
A Boxer even low level boxer would know this and double up his punches. people dont think about it but there is a tremendous amount of technique and theory that go into these boxing combos. RJJ would dismantle silva in a boxing match.
"The fat man flies at midnight"