Yep, Daggerfall Covenant by a long shot. Plenty of werewolf and vampire related quests there.
PC NA & EU || Mammoth Guilds - Victory or Valhalla || Altmer sorcerer main
"Wood Elves aren't made of wood. Sea Elves aren't made of water. M'aiq still wonders about High Elves."
I haven't finished DC yet (Caldwell Gold) but theres quite a lot
AD has the Malabal Tor zone which is almost entirely about Werewolves. But very little else as its all about ancient traditions being put aside to unify the 3 people under Queen Ayrenn (Begining with the political ruckus of the Maormer in Kenarthi's Roost - followed by the Veiled Inheritance's meddling in the next zones, Ayrenn's rise to power, the settling down of the new Green Lady, and finally bringing the fight to Cyrodiil through the Mane). But if you get lost in all that political chaos, fear not. Raz is there to keep you on track. : )
EP is just random and other than the Stonefalls region which was heavily themed to the Brothers of Strife seemed lacking in any underlying narrative for the rest of the zones imo.
I don't know if DC has more of them, but it certainly has the best quests dealing with vampires (whole main quest in Rivenspire) and werewolves (some village in Bangkorai with a dark secret).
DC has almost a third of Glenumbra wrapped up in a werewolf story, and pretty much all of Rivenspire tangled with vampires, a vampire-involving quest in Alik'r, and another werewolf quest in Bangkorai.
AD has a vampire-hunting quest in Grahtwood, another in Greenshade, and a quest or two involving werewolves in Malabel Tor... I guess the werewolves kinda make another appereance in a "future vision" during the last reapers march quest also...
EP has... hmmm... vampires in Eastmarch... can't really remember any quest-wise werewolves though... their storylines are way more into daedric influences and forign incursions I guess.
Yeah I think it's got to be DC for werewolves. There's a special Hircine related quest, that even has different dialogue if you actually are a werewolf. There's a quest where a small village has all become werewolves. And then even the werewolf in the starter city and the whole quest line just after where you have to capture one in Aldcroft and defeat Faolchu. That's just a few