Trying to find good gloves is like searching for a needle in a haystack. 99% are crap and it's near impossible to tell if a pair is good until you use them a bunch.
That being said, I find the ski companies who have been around longer make better products.
Hestra, Dakine, and North Face are a few of the better ones. Burton are usually good.
Keep in mind that each company makes a variety of models... the full spectrum from shitty to excellent.