The old Craftsman stuff was pretty good. The new stuff, not so great.
There is non-industrial stuff at Lowes and Home Depot that I have used in a pinch that is okay. I have pressed Hanson taps from Lowes into production use. Way better than HF crap. I think these might be a good fit for the home handyman wanting decent quality in a set. Their Dewalt drills are also surprisingly good for consumer grade tooling.
For industrial quality, there are lots of good tap and die makers, and I can't say which is best. Personally, I almost always buy OSG taps. I don't even know if they sell them in sets. I wait for MSC to have a decent sale (I check their website daily) and buy them there. These are good for more than just a few holes. And a knifemaker can count on them to work without screwing up their hard labors.
One of the most costly tools a machinist can buy is a cheap tap.
I wish all you guys could utilize thread milling, but it takes a CNC. It makes all the problems with threading go away.