I hate to compare ESO with WoW or other MMOs however I'm going to on this occasion.
When completing a quest on most of the other modern MMOs I've played you're presented with a couple of choices, you can take the really cool sword or perhaps the staff instead, sometimes you're even presented with more than two choices. Thus upon finishing a quest you can usually find an item that you would either use rather than being forced to take on items that are useless to you.
A great example for me is while in Mournhold you get pieces of the Ordinator armour while completing the cities quest lines which is as a total Morrowind geek is the thing dreams are made of! (Well if I could kill the guards problem would be solved) However the armour is (Medium) and no choice is given, I wear a mix of (Heavy) and (Light) so being presented with the only option to take a (Medium) armour it quickly went on the NPC scrap heap.
This isn't the only quest its EVERY quest! Theirs no choice to any of the rewards, you just get what you're given and if its useless to you then tough! Why couldn't we have had a more modern system offering different choices for quest rewards where we could pick items that were more suited to our characters?