Bisping is my favourite fighter, has been since TUF 3. I fully agree, he is awesome. But this is also a no win situation for him, if he loses people say he lost to a blown up WW, for the second time in row. If he wins people say he beat a blown up WW.
Only positive thing going into the fight is that he has trained for a similar fighter in GSP, although I think Kelvin is a bit more crafty with his stand up and movement.