This probably isn't backed up in any way by actual studies conducted with character attributes, but I feel as if Morrowind had a far superior running speed to that of Oblivion's. Perhaps you just felt badass running arms akimbo like a football player, instead of jogging like a schoolgirl.

Wow, you are good. Even I didn't know the word "Oblivion" was even in that post!

I think seti dons a ninja mask for those occasions.

I don't like the fact in Oblivion that you can attain instant velocity, 'causing your character run straight ahead and THEN let gravity take effect, while on a slope/ hill. The floaty falling physics are very annoying, especially for jumping. If you're running full tilt over only slightly bumpy terrain, sometimes you can't jump right at the second you want/ need to because "you can't jump while in the air."