My favourite Assassin's Creed game is one I haven't even played yet

I am almost 80 hours into Assassin's Creed Valhalla at the moment, and I've been having a good time. I'm enjoying it a lot more than Odyssey (sorry, Kassandra), and the time I've spent conquering England has been full of strange and wonderful delights. And yet, as much as I'm entranced by Eivor's come hither looks and her enormous buff muscles (again, sorry Kassandra), it is a different Assassin's Creed game I often find myself thinking about on a day-to-day basis. One that gets my heart pumping, my blood racing and my mind excited every time I hear its soundtrack - and it's a game I haven't even played.