Hey guys after getting to about lv 14 in ebonheart I figured out that alliance is most like skyrim but I like the oblivion game more so which alliance is most like the game oblivion
Oblivion had a fairly diverse range of environments, so it's kind of hard to point at one alliance for that.
Daggerfall Covenant has a lot of classical medieval fantasy type design. The usual green pastures and stone castles. There's other environs like desert though.
Between the three, I suppose I would recommend DC. AD and EP are both rather abstract, even surreal in places. DC is a lot more "standard fantasy" in many spots which may be more in line with your goal.
EP terrain is rather ugly. Barren, scorched earth, swamps, but... but the Rift/Windhelm (Skyrim feeling ftw!).
DC is like the guy above said; more or less balanced, heavier on the "dry land" side though.
AD is all about woods and greener than green grass plains. Quite beautiful for the most part actually.
Plus... (minor spoiler): the cat. the most clever and amusing cat does work here!
However, if you muddle through you will visit all lands anyway (your own territory, then grinding through VR levels in both "hostile" territories).
I remember TES: Oblivion being green and woody. So in that sense maybe AD might be something similar.
TES: Oblivion takes place in Cyrodiil which of course you are able to enter also after lvl 10 though it is the PvP zone so other dangers than mobs lurks behind the corners.