Skyrim is the best TES ever, Morrowind and Oblivion are crap compared to it. [W]hy are poeple saying OB and MW are better?
+ infinity.
I've played a lot of RPG and adventure games. Generally, all TESes before TES:S were below par. They were ugly, wooden, stilted, repetitive, and just plain stupid.
TES:S is a proper adventure game. (It leaves a lot to be desired in the RPG department, but no less so than in previous TES installments. Arguably, it's actually taken a few steps forward in some ways.)
It has a lot of flaws, but nothing that's game-killing.
It's not as boring as previous games. Anyone who wants to go back to 'old-school' TES is nuts. That's your answer: people say OB and MW are better because they're nuts.