Unless his plan is to get beaten to a pulp its not gonna matter since GSP will be the one deciding.
That's Nick's point I think, he's not going to be able to control where the fight takes place so he's making sure he's 100% ready for the positions that he will be placed in.
What makes GSP so good on the mat that he can just run through Nick? He didn't want to go to ground with Shields and Jake doesn't have a guard like Nick's.
Nick's standup is arguably better than GSPs, cardio is probably even.
Georges didn't want to go to ground with Shields, went to ground with Condit and got swept, he'll either not mess around in Nick's guard and use the Condit strategy or he'll have an incredibly tough fight.
I do think Georges will win but not with any degree of ease.