I had to vote "Wave" and Original Wave at that. The Charge is okay, but I prefer the individual tools to the interchangeable (and easily lost) bits.
I've been carrying the original Wave for about 30 years (maybe more, I'm getting old). I've tried many others including the Charge, the new Wave, the XTi, the Super tool, the PST, the Rebar, the Signal and the Surge. None come close to replacing that old Wave