What's your favorite outdoor finish that maintains the wood look (no paint)?

Personally I've been using General Finishes Exterior 450 water based topcoat. It's what was recommended to me by the guys at our local Woodcraft store. I use several other general finishes topcoats and so far I haven't had any complaints. It does take quite a long time to fully cure (about a month) but the can does say that it can be put outside in the elements after 5days of dry time.