I for one preffer fixed 6s as they seemed the best all round for hunting etc, from 25m to 400m. I used to use 6Xs for everything at one stage, but eventually moved up to 10X for target work, and other ranges for various other things. My biggest problem became finding great cheap 6Xs. The Leupy 6X42 is a nice scope, and I would consider one, if your budget is bigger consider many of the European brands, who still tend to do excellent 6, 7 and 8 fixed powers, as well as 10X. You may have to look a little harder, and spend more, but folks like Wolverine (site sponsor) can land you a great euro 6X for a fair price.
Nikon used to do a great big 6X which they since dropped. I always found, as with all scopes, the best glass you can get is what you should get. Some of the cheaper ones on the market lack the clarity, which I find with a low power fixed scope comes back to haunt you quickly at range.