xtar or Pila. Pila is a great charger but it's long in the tooth and short on features compared to what is in the market today.
xtar consistently works right in the technical
reviews and they are backed with a two year warranty.
NiteCore and eFest? Sell chargers that have to be recalled when they aren't designed right to begin with. (1st generation i4 and Luc v4) And there are a boat load of complaints about... ahem... NiteCore's behaving badly on ECF.