The TG base armor also looks good for rangers.
I know - that's the first thing I considered, actually. I don't really want to join the guild, though...
Hide, Studded & Scaled look more like Conan than a ranger, I think. Leather doesn't look good to me. Maybe it's just because I play male characters. Elven looks like the Thalmor, and Glass... well, I haven't actually ever used glass, but I think it would be rather alien looking.
Dragonscale is probably not an option, either.
Savior's Hide looks too ... sixahh ... for me. Fine on females, but when I tried it once on my male Nord (for about 2 seconds) I just thought, 'Dude, where are your
pants!?!?'