Yep fellwood sucked big time. Completely stupid that the place changed after every little quest so you could go the same route and end up in different places. And the will-o-wisp battle was the most annoying and unfair thing in the game. Very unimpressed with that.
Animate dead's good yeah, although I was never very pleased when I'd use it and end up with a greater drowned dead who would die in two seconds instead of a greater boneguard