I recently purchased Skyrim, and I had a ton of fun; but I had began to realize a plethora of issues from game balancing to unimpressive story-telling that finally compelled me to quit. I spent a little less than 93 hours on it, which speaks great volume of how enjoyable the game can be, however.
I don’t have a particular top ten, so I’ll just list a few series that I’ve enjoyed over the years: Detective Conan, Jujutsu Kaisen, Code Geass, Death Note and Grand Blue.