I love my little Efest LUC 2-bay charger I bought a year ago. Little LED display to show charge rate and battery state, seems to charge everything to 4.2 and then maintain from that point. I've checked the cells with a multimeter and they come off the charger within 0.01V of what the charger is telling me, even halfway
through the charge cycle. I don't have any way to actually check the charger and whether or not it's providing accurate amperage during charge.
ETA: I do like my old workhorse nitecore charger for my truck because it will auto-detect AA and AAA ni-cd cells and I love having that ability on the go. It doesn't have a cool LED display though, but who really cares for a truck-charger, right?