I have all of the dlc, but I've played them very little, save for a bit of dabbling, & wandering the contrysides of each. My fav, due to the map and location is DB, primarily because of the inclusion of Anvil, and a completely alive Kvatch, just like in the Oblivion mod Kvatch Rebuilt...
Huyen Shadowpaw, dedicated nightblade tank - PS4 (Retired)
Huyen Swiftpaw, nightblade dps - PC EU (Retired)
Huyen Lightpaw, templar healer - PC EU (Retired)
Huyen Swiftpaw, necromancer dps - PC EU (Retired)
Huyen Swiftpaw, dragonknight (no defined role yet)
"Failure is only the opportunity to begin again. Only this time, more wisely" - Uncle Iroh
Orsinium main city is the most laggy place for me in entire game, textures of all the buildings and surrouding areas are loading so slow, and in general runnign there is laggy, so it's not my favourite place.
PC EU (PL): 14 characters. ESO player since 06.08.2015. Farkas finest quote: "Some people don't think I'm smart. Those people get my fist. But you, I like."