Williams to me is the best old stuff. I have boxes of that stuff my uncle stole from the coal mine in the 70s.
Honestly, I am not a tool snob. However, my tool collection is made up of mainly wright, proto, snap on, mac stuff.
Now, I said I'm not a tool snob and my tool box is full of name brand good tools. However, my go to tool set is a 88 piece cresent brand tool set in a nice plastic travel case. Has 1/4 to 1/2" drive, metric and standard, deep wells and regular, screw drivers, allen wrenches, combo wrenches and a nice assortment of light duty torq bits, and other crap.
I use that for 99% of my work. I got it for a Christmas present from the coal mine in 2005, and I have used it forever. I actually broke the 1/2" ratchet, and 7/8" socket trying to get the bumper off my Ram. I looked it up online, filed a warranty claim and they sent me a new replacements.
For Christmas this year I got a nice 258 piece craftsman set. I have no had a chance to even use this.
For working on mini bikes, with the tiny hardware honestly you don't need expensive tools. If you want to throw away money buying high end tools to take a 3/8" bolt off a mini bike then that is up to you. Most automotive jobs don't require heavy duty tools, a harbor freight tool set will work fine.