Anyways, I've decided to give reasoning. With hardtails, you get a bigger shock when you go over obstacles, so, instinctively, you search for the cleanest lines. With full suspension you can just plow. Hardtails teach you how to ride cleaner and more carefully, generally & initially.
As for what I can reccomend,
Giant STP 1,2,3
Kona Dirt Jump Line
Specialized P. line or Hardrock
(Lower budget versions are still strong, I can't say much about trek since they were more xc before and I must say, I hate how the bruiser's look)