IC, TG and DB are nice but I feel don't offer me much to do beyond the questlines (and I don't PVP). Orsinium was packed with much more content in the zone.
In retrospect, I wish I hadn't paid for any besides Orsinium (even if I did enjoy them) and stuck to playing via ESO+.
Although I have all four, I've done very little in each, other than to visit the respective zones & just feel my way around, and basically do the intro-type quests. But just for the inclusion of Anvil & Kvatch alone, my favorite is definitenly DB...
Not done the quests but I've done VMA at least 100 times so I guess by time played it's this one.
Will one day try do the stories and listen to them but they're so long winded, I literally get so bored and just spam "a" button to click by the Npc dialogue
Xbox one EU
8 Flawless conquerors on all class specs (4 stam, 4 magicka)
Doesn't stand in red
I put orsinium because of the set gear Julianos and the quests are pretty decent. But story alone I think Dark Brotherhood is better. I have thieves guild too but only completed the first quest. And Imperial City only did wgt and vwgt actually never been in the PVP middle part yet. Still plan on eventually when I get enough vouchers for a second attunable tailor forge. I mde my first one Julianos thinking it would've been able to be re-attuned. Boy was I wrong. LOL but the next thing I get will be the better target skeleton and after that the Gold Ebon motif. I feel like the master writ receiving rate has dramatically decreased. I would get a Master Writ at least 1 every 20 writs so it seemed. But since the last update(Dont get me wrong I love these anni boxes) but I only got 1 master writ with close to 100 writs done! Anyways off topic again sorry, but yeah Orsinium because of forges and Darkbrotherhood because of quests in my opinion.