Personally, for me, I find Cloth/Robe-type models look really bad on Tauren and a lot of our ornate head-pieces look really out of place because they don’t sit properly.
I’d say Taurens only really suit Plate and some Mail sets, without looking really… odd. Thing is, it’s totally personal preference. I’d recommend looking at Taurens in the WoWhead dressing room with different Tier Sets on them to really make up your mind.