I think a jump system that was functional for getting around obstacles would be nice. (How often have you looked at a tiny rock and said, "I'm so tall. How can I not walk over this?")

But I don't want the dime-a-dozen type of jumps you get in most MMOs. If it worked like the Zelda style, or even FFX-2 (Yes, I played it. So what?), it wouldn't be too bad. But I think I should be able to jump down from some places, or pull my self up to others.