Hi,
i think you should take a close look at their spec. and choose the one with the more popular brand names no dodgy parts! and choose the one that will most suit your riding style (what i mean is if you like riding on trails pick one that will most suit riding on trails, or if you do dirt jumps more often pick one that will suit that best...see wat i mean?)
Me i got a KSH DH50 Fetish, even tough it is a DH bike i still use it for dirt jumps, riding on trails and a little urban.
i chose it because i do more of DJ than anything else and because it is a DH bike it can take more **** from me!