Here are some reasons I thought Oblivion was kind of bad:
1. Literally everything scaled with you. When you got to level 40 or so bandits were running around wearing daedric armor.
Well actually, level 25 was the max enemies would scale to, while you could keep leveling. But
"literally" everything?? No way, the world didn't scale, it remained the same.
2. All the dungeons looked the same.
Pretty much, just different layouts, but the sections were copy and paste jobs.
3. Most of the towns looked eerily similar as well.
How so? Bravil didn't look like Skingrad for example. Besides, stone is stone for the rest outside of the Imperial City
4. The land was mostly the same.
Completely untrue on this remark: were there not mountains, snow covered areas, forests, swamps, etc? I hardly call the features I listed "mostly the same".
5. It did not fit in with lore well.
What lore? It is TES lore, and Oblivion fit right in with everything that had been made before it.
However, if you add mods Oblivion becomes one of the most amazing games I have ever played.
Agreed on this last part.