Most metal-frame baitcast reels are at least decent. Non-metal frames aren't a deal-breaker per say, but because of the flexibility of the frame they tend to be less of a long-term investment than a reel with an aluminum frame. I've fished with two baitcasters with graphite frames, and while they work just fine and I've never had any malfunctions, under heavy load (such as fighting a fish) you can feel a tiny amount of flex that isn't there with a metal frame. Can't speak as to how much effect that has on the lifespan of the reel, but using a graphite reel with heavy line for winching is probably not going to do any favors for the reel in the long run.
When it comes to brand, I'd say try to get to a store such as Bass Pro, Scheels, etc., and see how different reels feel in your hand. Then buy what you like. Most reels at a given price points are fairly competitive with each other.
Bottom line, the only thing I'd really avoid is a non-metal frame. There really isn't a "best", there's just what you can afford and what you like.