Morrowind didn't have nearly enough slots or customization. Bring on the Daggerfall slots!
Slots, I'm not sure about.
Morrowind:
Clothes: Shirt, Pants, Boots(Negated by armor) Gloves(Negated by armor), Robe.
Armor: Cuirass, L/R Pauldrons, L/R Gauntlets, Helm, Greaves, Boots.
Accessories: 2 rings, one amulet.
Daggerfall:
Clothes: Shirt, Pants, Boots(Negated by armor) Gloves(I think), Robe/Hood.
Armor: Cuirass, L/R Pauldrons, L/R Gauntlets, Helm, Greaves, Boots.
Accessories: 2 Amulets, 2 Rings, 2 Bracers, 2 Marks, 2 Crystals.
OK, I see your point in the accessories dept.
Customization, most definitely. I want the "Use" functionality back; switching between hood-up and hood-down, switching between different armor visual styles, etc, etc.