I've got a bullit, its fine for everything, you just have to work harder when it comes to xc. my frame with fth element coil shock weighs 9.5 lbs. Its an excellent climber, and going down is like a magic carpet, personally if it was one bike only this would be it. In the uk if you re at all interested in going down, you need something that can go up. The bullit is it. When it gets to the alps its the best thing next to a full dh rig.
EDIT: The heckler comes down more on the xc side than the bullit, but we re talking shades of grey, if you feel that you need to let out your inner hooligan, then buy a bullit, if you are a tadge more reserved, buy a feckler.
imho stw isn't the place to find much positive about bike like the bullit or the feckler..