I've been collecting resin kits ever since the mid eighties, Kaiyodo, Volks, Inoue Arts, etc. I stay away from recasts, but bought a few by accident on Yahoo Japan auctions, my Japanese not being the best, plus they showed pictures of the original boxes on the auctions. A couple were almost exact copies of the originals, a couple were total junk made of some super cheap stinky resin that wasn't meant to be used for kits.
I've never bought any of the prepainted ones because I new they were recasts.
My favorite kits I own are my Inoue Arts KK vs Godzilla at Atami Castle, the Murakama "Sleeping Kong" and Daimos Godzilla 62 with base that attaches to the sleeping Kong kit, and the Inoue Arts KK vs Godzilla "Tree Sandwich".
Here are links to pics of which kits these are:
http://www.kaijukits.com/library/inoue/ ... astle.html
http://www.kaijukits.com/library/inoue/ ... esand.html
http://www.kaijukits.com/library/daimos ... la1962.htm
http://www.kaijukits.com/library/muraka ... ong/kk.htm