I have the Emerson-designed CQB (I forgot the name) that is my everyday carry. It's fine. I'm not sure if the tanto blade is best for utility, and it scares some people, but it is sturdy and has served my needs very well. I also have the AFO automatic. I got a great deal on it, but I don't use it, mostly because I don't care for the aluminum scales (cold!) plus it's not worth the hassle of people asking, is that legal?
I think the Benchmade knives are nice. It's up to you whether having an automatic is worth it or not. I got mine because I could. It appears you live in OR so you are covered legally. My AFO has a little sliding safety and it snaps out everytime I press the little button. After awhile, the novelty wears off. At least it did for me. I can snap out my CQB faster, but that's not the point. Unfortunately, the mail-order place in OR that I bought it from has gone belly-up. If you haven't played with one, try to find a store that carries them and see. There is something special about having an automatic knife. It's nifty. It may not be practical, but if you can afford it and it's legal for you, then why not?
Good luck!