The reason I don't care for Titan's Grip is because it makes Arms pointless. Why fight with one 2-hander when you can fight with two?
I lvled as Fury back in Classic before finally going Prot at 60 and I liked the fast swinging weapon theme that Fury had to offer. I never cared for Arms because I didn't want to use a 2-hander. Then they add in Titan's Grip and I have to use two 2-handers? No thanks, I'll stay Prot.