I may be better at suggesting who you should stay away from, more than who you should go with. That being said, we have several really good moose guides up here. It would depend somewhat on the hunt type that you want. The Alaska Peninsula still has some really nice bulls and Joe Klutsch is one of the best. No one is more honest and hard working than him and he's been guiding the same area since the 70's. He run Katmai Guide service, 907,246-3030.
Another good starting place is looking at the Alaska Professional Hunters Association's website at akprohunter.org. Klutsch is listed under the Master Guide category. Other good ones are Wayne Kubat, Joe Schuster, Tony Lee...
Send me a p.m. and we can explore what you may want, if you are looking at Alaska.