E E knight and Illona Andrews both do wonderful jobs of combat scenes, and so does Simon R Green, especially in the Deathstalker series.
Also, what setting are you in? magic or tech, swords, guns, fireballs, giant robots. Versus man, beast, demon, etc.
I like to think I'm pretty good at combat scenes, and I've never had a problem voicing my opinions, so if you would like, i would like to help.