Overeem has taken harder shots in K1 than Cain could ever dream of taking and still went on to win.
Could have fooled me. He got caught by Hari in the 2nd fight and was just getting destroyed. What I'm saying is that in MMA, if he got dropped and a guy like Cain got on top of him with GNP, he would probably turn over into a defensive shell or get finished like he did against Shogun twice.
Alistair could defend easier in K1 as well, those gloves do help when it comes to defending kicks and punches. Alistair also loves to kick and throws that stepping knee, which can work very well with wrestlers who want to set up TD's.
He defended Brock's TD, but Brock didn't even grab his leg and drive, it was like he grabbed Alistair's leg and just expected him to fall down. Cain drives you across the cage when he grabs a leg and IMO JDS has much better TDD than Alistair. Most of the times Alistair has lost by strikes is when he's gassed, against Cain, it just depends if he can land a good shot and hurt Cain and possibly finish him, or if Cain has his way with him and makes Reem gas.
Anderson Silva beat Chael Sonnen twice, but in both fights Chael used pressure and TD's and did very well, but Alistair isn't Anderson Silva when it comes to conditioning and movement. Alistair won't be able to get that knee off if he's backing up, or very good kicks, Alistair also throws hooks more than anything, which Cain could duck under and get TD's from dodging strikes and driving Alistair into the fence and pulling him off his feet.
Alistair is a good fighter, but if he CAN'T land a big punch, knee or kick on Cain, he's doomed. I also think JDS would beat Alistair because Alistair telegraphs the stepping-in knee a lot, and I think he'd catch Alistair the same way he caught Gonzaga when he went to step in with a kick.