My two normal EDC knives are a Griptilian, or a Spyderco Endura with the wave feature.
I like both, and think they are both excellent knives for the money. I have a waved Delica as well, which has a shorter blade than the Endura, but is just as tough.
I like the locking system on the Grip a little bit more, but like the slimness and wave feature on the Spyderco's.
Personally, I don't think you can really go wrong with either. I have been bouncing back and forth between these two for years.
EDIT: I also used to have a Benchmade 530, which really was a sweet little knife, nice and lightweight, and slim in the pocket. Unfortunately I lost that one somewhere in the middle of a training exercise in the deserts of 29 Stumps. But, it was a nice knife. I think I may need to order myself a new one in the near future, now that I am thinking about it. For something from Benchmade that is smaller than the Grip, it would be a solid choice.