I'm also an all-canned feeder; I'm currently in the process of putting together a new feeding plan for my cat, so I can't really say for certain what brands I'll be using, but have in the past used Wellness and Innova canned fairly regularly, and have tried several of the other brands spacemonkey mentioned.
A lot of people now feel that at least 50% of a cat's diet should be in the form of wet food (either canned or homemade), just so the cat stays properly hydrated and the load on the kidneys is eased somewhat. But it's a personal choice, based on ow you feel your cat does on any given food; my cat doesn't do well on most commercial dry foods, and I have only used dry as snacks, treats, and the occasional meal (I've used Wellness dry and Innova Evo most recently, and in the past have fed Hills Science Diet, Hill's prescription diet, and a few others). You'll need to be your own best judge of your cat's health and tolerance for certan types of food (corn and wheat are a problem for my cat, so I avoid them, and I avoid fish for the most part, as well). I probably won't use dry food at all from now on.
My best rule of thumb is "feed the absolute best food you can afford, that your cat will reliably eat." There are many threads here about finding good-quality canned and dry foods, so a search will help you track that information down. It can all get pretty confusing, so the best bet is to decide what matters to you (be it natural ingredients, whole foods, vet approval, or whatever) and look for a food that fits your requirements...it's easier than trying to memorize a list of "good" foods and remember why they're "good."