Lots of good fly hooks now days. I probably use more TMC than any other, but I use Daiichi, Mustad, Dai Riki, and Gamakatsu when a pattern calls for them. I use what I think is the best hook with a size and shape that best fits the natural I'm trying to imitate, and you can't always get that in just one name brand. I also use hooks that are a little less expensive on patterns that I know I'm going to loose a lot of them. Buggers, Stonefly, Crawfish, Minnow Imitations because of the way you fish them are more likely to get hung up and lost than regular dries and nymph. So those are the type of patters I am likely to use a less expensive hook on. Really it's hard to go wrong with any of the major manufactures.
"Have no fear of perfection - you'll never reach it."