in morrowind i preferred...
the look of daedroths- they looked so ugly in oblivion. i prefered the skinnier man crocodiles with loincloths than the thing we had in oblivion
deadric armour
orcish armour- samurai's ftw!!!
dremora- they had cool tattoos and i think with today's technology they should be able to turn to ash upon death so much better
soul gems - they were pretty and easy to tell apart. some nice refractions would be great too.
dwemer architecture - bronze is better than silver . i think a shinier bronze would be the way to go.
dumner
i did like the way oblivion did a few things tho
golden saints- id prefer if we could get their Armour in separate pieces this time
clanfears- they looked so much better more raptor like
dwemer armour
things that i think looked bad in both games
iron
steel
ebony
rats
imperial armour
glass armour
orcs
wood elves
redguards
khajits and argonians