the Kingman Spyder series is a good place to start, or try
Inferno
Piranah
Tipman
or look second hand (Auto-mag, Cocker, Impulse)
depends on your budget.
if you're new to the sport, i recomend trying as many differant markers as possible.
ive used all but a tipman, and thats by choice. i ended up geting a good deal on a cocker. but it depends on budget, and technical ability.
Piranahs, and infernos, are as easy as anything to clean, and maintain. piranahs are "spyder clones", and as such are just as good as a spyder, but do benefit from a quick strip system.
just try em and see.
everything about paintball comes down to preferance, and thats something only you can decide. you gun is the biggest investment youll make so make sure you get it right first time.
hope that helps