I'm confused about neck styles and all the different contours.. what's the difference and what's the big deal? what's the best one??? examples are the "c" "u" thin flat, extra thin flat etc etc...
Check out this link.
http://www.warmoth.com/common/frames/guitarneck.htm
Maybe the info there will help you out some. Which one is best is a very personal thing. It's all in how your hands are built and how you play.