Since GSP didn't submit or tko anybody for quite a while that takes away from his sub skills and striking IMO
We can actually say Fedor was subbing people, knocking people, throwing people in all different kinds of ways.
GSP is very well rounded but he didn't fight well rounded for the last few years of his career.
Takedown, body body head GNP, suction pass to half, body body head. Gets put back to full gaurd, and starts over.
Plus for the last few fights GSP got pretty beat up from bottom causing limited passing from him.
And GSP struggles with combinations not built on the jab. It's not a big deal until you fight somebody who knows how to exploit it.