Consider, who is tougher, your morrowind character or your oblivion character...and don't leave us out of the details.

My Morrowind main could have pwned any of my Oblivion characters. But that's down to better unique items in Morrowind and it's expansions (Mantle of Woe anyone? 5x magicka bonus is HUGE!).

Oblivion character, played it longer (makes for higher level)...

Well, according to my lore concerning my characters, my Oblivion main character killed my Morrowind main character. So there you go.

But I think a vanilla Morrowind character set to be as strong as he/she can be, versus a vanilla Oblivion character set to be as strong as he/she can be, I think the Morrowind character would win. By a long shot if you include exploits and/or glitches.

morrowind is boring and long but my charecter has stuff that will kick your ass

Morrowind characters can levitate.
/thread

Daggerfall, on the other hand...you could fight on horseback whilst levitating! So my DF character would probably mop the floor with both of them.