I really wasn't impressed much with Oblivion. I like Morrowind the best out of all of them,followed by Skyrim. Skyrim did feel dumbed down/too casual in alot of ways now that I'm thinking about it,more of an action game than real RPG,but I liked most of the stuff in it.
honestly though,the DLC for Skyrim was a letdown for me.Alot of the factions were a letdown and I thought stuff like the twist to the Thieve's guild was cheesy and also the dark brotherhood =/
Alot of the loot in Skyrim was absolutely useless as well,no good weapons to speak of really. You pretty much had to craft Daedric,etc...........I would of liked to be able to find them in a high level dungeon or something like Morrowind.
I did like Skyrim overall,I found it combined some good parts about Morrowind and Oblivion.Alot of the dungeons reminded me of Morrowind stuff,like little hidden off the path ways to do stuff
been meaning to play Oblivion again.I only ever did the main quest,arena,and some of the dark brotherhood.
had alot of lagging issues with Oblivion even after clearing the cache on the 360,idk what was up with that...