In terms of gold return. If I'm levelling enchanting by enchanting iron daggers, which enchant gives the dagger the most value? Assuming I'm using just petty/lesser souls.
The value of the enchantment effect in Skyrim seems to be inversely proportional to the # of base uses for that enchantment.
With a ratio of 5.5, the Banish effect gives you the most money per item. You can easily make iron daggers with banish that's worth more than 2000 septiums with a lesser soul gem.
For armor and jewelry enchantments, the Waterbreathing effect is the most valuable for petty soul gems and Fortify Sneak for anything with lesser soul gems or higher. But Banish easily out classes any armor enchantments in terms of profit.
"If you are mass enchanting your items, it is more profitable to do so with weapons. Weapon enchant prices are calculated by base uses; the fewer base uses an enchant has, the more expensive the enchantment will be. The Banish enchantment is by far the most profitable weapon enchantment."
You can make a lot of money from enchanting all kinds of things found in the game.
I'm not sure how z calculated the proportions they mentioned but here are the Weapon Enchantments sorted by base cost:
113 Banish 034 Paralyze 031 Absorb Health 029 Turn Undead 029 Damage Stamina 022 Absorb Stamina 021 Absorb Magicka 016 Fear 015 Damage Magicka 014 Shock 011 Fire 010 Frost 009 Soul Trap
And here are the Apparel Enchantments sorted by base cost:
672 Sneak 393 Carry Weight 369 Two-Handed 369 One-Handed 352 Archery 256 Destruction 251 Healing Rate 246 Conjuration 236 Smithing 235 Block 231 Restoration 226 Illusion 206 Barter Prices 206 Alteration 202 Health 196 Resist Shock 188 Magicka 187 Resist Magic 186 Resist Frost 184 Pickpocket 176 Resist Fire 168 Lockpicking 167 Alchemy 161 Stamina 157 Heavy Armor 137 Light Armor 125 Stamina Regen 105 Muffle 100 Waterbreathing 088 Unarmed 055 Resist Disease 053 Magicka Regen 039 Resist Poison