1: Either make a lot more combat lines, or make enemy npcs stop spouting them at every oppurtunity.
2: Being something of a blunt weapons user (me and like 11 other people, probably), I would like blunt weapons to have different sounds when hitting enemies. A satisfying crack when hitting an enemy in the skull, the sound of breaking bones when you hit a skeleton with sufficient force, and a crunching sound when you crush mudcrabs.
3: No hyper-agressive-but-weak enemies. There either shouldn't be mudcrabs, they should not be agressive at higher levels, or they should be stronger (meaning an actual threat) but scarcer.
4: Better alchemical ingredients. For example, I never really found much use for crab meat, and it doesn't sell for much, so it never really felt much like I was really doing anything worthwhile by collecting ingredients, except for the later ones.
5: Also, if you are going to have levelling enemies, at least make the ingredients dropped by weaker enemies still available in moderate amounts.
6: More, and better unique spells, in Oblivion for example there are two quest rewards that come to my mind: the Spelldrinker Amulet, and Wizard's Fury. One is a unique amulet with a unique model, and the other is a unique spell, with no unique graphics or effects. My point is that unique spells should get the same treatment as unique items. Perhaps, also a few more whimsical spells, the example I thought of was a spell that would cause mudcrabs to explode, hurting anything nearby.
7: More weapons. Not just more same-y swords, but more types of weapons. Even if it means less of each type of weapon gets made, modders can make more anyway. Also, on the note of swords: make a few swords that are thrust and not just swung randomly around.
8: No mudcrabs.
