I didn't realize how big the gap was either until I actually started typing the lists. Skyrim even surpasses Morrowind in base amount, though Morrowind offers considerbly more customization by virtue of it's 11 primary equip slots. (I think 15 if you count accessories)
In an unrelated note, Dragonborn is going to have a hard time topping anything that looks as amazing as [Dawnguard Spoiler] http://images.uesp.net/c/c4/SR-icon-weapon-Dragonbone_Greatsword.png
In an unrelated note, Dragonborn is going to have a hard time topping anything that looks as amazing as [Dawnguard Spoiler] http://images.uesp.net/c/c4/SR-icon-weapon-Dragonbone_Greatsword.png