I've said in a thread here before so I'm just repeatin myself but its ok.
My personal rule of thumb when coming to speakers is to go with a speaker only manufacture. Polk Audio, Boston Acoustic, Image Dynamics etc. However, the Kicker line isn't bad either so I don't know bro its pretty much a toss up. I've heard and have owned all of the above and they all sound great. I guess it just depends on what your looking for.