I personally prefer DC ONLY chargers as I already own a couple of power supplies, plus no internal power supply to crap out.

I'm currently using a Hitec X4 (4 banks capable of 6S or up to 6A charge rate) because I run 1/10 and 1/12 so I have to charge 2S LiPo, 1S LiPo, and 2S LiFe and don't feel like constantly changing settings (more room for error) and waiting forever between runs...plus people tell me it looks like a stereo mixer xD