One hell of a chin and ability to take serious shots and survive. 
I completely agree OP. Bisping's got heart like a motherfucker.
Any time you see someone say Bisping has a glass chin,completely disregard that persons opinion because they don't know shit. In mma 37 fights he's been stopped by strikes two times,by Hendo and Super Vitor.
Yeah seriously same as the silva fight
Hendos power is second to none.
This is actually one of the fights I think really should have been a draw.
Lots of volume and control for Bisping but Hendo did more damage and came closer to finishing.
Totally agree. I thought he lost the fight but to come back after those knockdowns and to push through 5 rounds like he did is really impressive. Got nothing but respect for the guy