I was thinking recently and I am curious. What would you guys think of combat-based companions or even pets? Now, granted they won't be allowed in group content (Craglorn, Trials, and Group Dungeons) and obviously not allowed in Cyrodiil and Imperial City, but in all of the normal zones stuff, what would you think? These companions could be simple NPCs like a simple healer, knight, archer, etc who are there to be a little extra help or could even be quest specific NPCs that you have befriended in your travels (and if it makes sense why they would travel with you) and may have some unique lines about different locations and quests you do... That sort of stuff.
Granted, these NPCs must have been combat NPCs for you during quests at one point in time so their AI data would already be made and can be used easily. Plus it means that you have gotten use to them or gotten some enjoyment from having them around...
I wouldn't care about them personally too much and at most, I may use a healer on my tanks and such. But what about you guys? Any NPC you gotten a likeness to or would you like to have an extra man backing you up?