Well I've never had that big of a problem with infamous Bethesda bugs, so that wasn't really an issue for me, but I can understand why people would want to fix them.
Honestly, the one thing I really wanted to change in Oblivion was the level scaling so that there was actually a feeling of progression.
The game had enough content to keep me busy for hundreds of hours, as do the Fallout titles and Skyrim, except Fallout and Skyrim had no game mechanics that I felt really needed changing so I'm perfectly fine playing them on consoles, where I feel the controls are better and the seating arrangement more comfortable
I can understand why people would want to mod there games to be the way they want them, but that doesn't make the console versions inferior.