Snap on for the most part for sockets and wrenches. Their air hammers also rule.
I prefer matcos swivel sockets over snap on though, I feel it's a much better design. I broke snap on swivels frequently but I couldn't break the matco ones even when I tried. the matco swivel will start to seize up but I could always limp them by till the tool truck came.
Snap on has better ratchets too, and flex heads can't be beat once you get the hang of them.
My ratcheting wrenches are blue point which are the cheaper snap on line, but I'll be damn because even abusing the shit out of them I can't break them. My shorty wrenches are sk, for the amount they get used I didn't feel I needed to spend the money on snap on. They have been flawless over the years.
I also like snap on extensions over any other make. The snap on style with the swivel end are nice until they wear which then the socket always wants to fall off, but my tool guy would replace them without hassle.
The old style hard handle snap on screw drivers rock! They can be rough on your hands though. They take a beating from a hammer when you wanna go chisel mode lol.
I have both Torx and Allen head socket drivers from snap on and have been happy with them. The bits do occasionally break but snap on always replaced no problem.
