This really is a choose your own adventure type fight.
Basically you are betting on Shogun's knees vs Chael's head.
I don't know if anyone watched the latest Best of Pride but Shogun had both an omoplata attempt on Nog and a head/arm choke on Overeem. He's got submissions, but he never seems to commit to them (likely for fear of gassing). Chael's also taken two brutal beatings at the hands of Jones/Silva and he's old with testosterone issues so his chin is really going to be a question mark for this fight.
On the other hand you never know what Shogun is going to show up or if/when he'll quit in the fight. Sonnen has changed camps and is now under the tutelage of Mark Munoz and we saw the shape Munoz was in in his last fight. Sonnen could go five rounds or look for a choke finish, he has to be motivated knowing that his path to a MW title fight is only one or two(easy) fights away.
We could see a FOTY,
we could see either guy retired...brutally,
we could see either guy give a performance that could lead to their cut from the UFC
You could see a submission, TKO or decision, you could even see a draw...
I know who I'm betting on but I'm pumped for this one. I think every fight leading up to this one will be short one rounders and feel like exhibition fights and this one will deliver.