I've done evike once, and never again. The sheer amount of aggravation experienced in dealing with them has yet to be surpassed in my many other transactions with online retailers - airsoft, or for other goods.
Airsoftpark on the other hand, can't say good enough things about them, in my recent experiences. Like ZackTheRipperC says, good-priced gear, generally good quality gear, and the shipping is pretty much covered. Three prompt, large-ish deliveries in the past two months, 1 issue that they've actively worked with me to rectify, and nothing but great and prompt communications and updates.