You're not going to do a lot better than Nitecore or Xtar without spending a ton of bucks. I own both a D4 and a VC4, as well as a Nitecore I4 (and an Xtar MC1, and...). I personally prefer the D4/I4, depending on whether you want the fancy display or not; that's the only difference between them I can see. The VC4 is an excellent charger and I think it has both better electronics and battery data as well as faster charging compared to the Nitecore parts. However, I find it too annoying to use in practice. It's so sensitive to input voltage, it will slow charging down into the 1-200mAh range, or even stop charging completely, if it catches a tiny voltage ripple. You have to reboot it to make it go full steam again. All that FWIW. Either one will do nicely. They are all good chargers.