I like Knipex, but I've been buying old pliers, my thinking is any tool more than 40 years old that is still in good working condition must be pretty decent. I've been buying Utica, SK, and lately a batch of imported jewelry pliers. A few months ago, not happy with HF quality, I filled in my assortment of pliers with stuff from Mountain, and while the finish isn't fancy, the tools seem very functional. My $7 set of 6 from HF sees plenty of use, but maybe because I tend to leave them around instead of putting them away.
Knipex or the long handle SK duck bills are what I tend to grab the most.
For 120 vac I have a pair of Gardner Bender pliers I like a lot, made for wiring work, insulated, voltage sensing, tips just right for forming wire etc.
Dunno why, but owning 40 to 50 pairs of pliers doesn't seem to be slowing me down at all. So many specialty pliers out there I think I might need (two kinds of hog ring pliers), and I can't pass up any of the nice old ones.