What I did, and I'm not sure it's the right answer, is buy what you can used, and don't worry about what brand as long as it's cheap and high quality. I had a mix of Indestro, Craftsman, Williams, Wright, Proto, Thorsen, SK and miscellaneous other stuff for a long time. It worked. As I got the chance, I bought SK stuff that matched, it looked nicer but didn't work better. Later on, I bought only Proto, and accumulated a nice matched set; it works better than the mismatched old stuff did, but they got the job done and the price was right when it mattered. I've now accumulated a lot of snap-on, and it is noticeably better than all the other stuff. Worth it? For some things, for sure, like 1/4" drive stuff, for Torx and hex sockets and for screwdrivers. For the prestige? Definitely, if that's important to you and you can afford it. For just plain nice, well designed, and well made? Definitely, if you appreciate nice things and can afford it. But, it comes at a premium price, and I wouldn't go in debt for it.
As mentioned before, Wright and SK are good values. Proto and Williams are every bit as good as Snap-on for durability and strength, at a slightly lower price, and a lower level of finish. There are good asian brands out there (mostly avoid chinese) but in general, in the US, asian stuff is hit and miss for quality, and harder to find good stuff that you can depend on. The general reluctance of US mechanics to buy asian stuff has resulted in a mix of availability and no real good brand recognition here. If you happen to live where high quality asian stuff is readily available, it may be worth comparing in price/quality to the US stuff. A lot of the asian better stuff is online mail order only.
The Carlyle at NAPA I have seen look good. I've bought a couple pieces and used them when I broke the only thing of a size I had and couldn't wait for warranty from Proto or Snap-on. Nice thing is NAPA is open on the weekend. They worked okay. I've given up on Craftsman. Don't want to start a bashing thread, but their quality isn't up to what it was in our fathers times. Gearwrench I've had have been good and bad, I've had several that failed, although those were early ratcheting wrenches, and I haven't bought any since, and upgraded what I had to better stuff. Some of them I see look pretty good now, but I'm not in the market to buy anything new anymore, (have everything I could ever use now) so I haven't bought them and tried. I guess I lied, I bought a gearwrench ratcheting screwdriver last week, to use the extensions in my snap on one. Too bad they aren't all the same diameter, they vary so much that one is too big and won't work at all in the driver, and one is loose. But, for 1/4 the price of Snap-on, I guess there's some quality drop to be expected. They look okay, and would work.