I only started playing a few weeks ago, and right now I'm mostly playing movie. Before that, I liked FS and TT evenly, but in Movie Block there are just so many options for great decks, it really keeps me coming back to it and experimenting
That is generally what I find: The more sets you add to the mix, the more variety you have in playing the game. More options is (to me) more interesting, less boring. That's why, once I got used to playing Expanded, I've found it exceedingly boring to go back and play Fellowship, where the options and variety are much more limited. Once I got used to having lots of options, the more limited formats started feeling very repetitive to me. Even Sealed, after about a series and a half, starts feeling REALLY repetitive. Same combinations of decks over and over and over.
Hopefully you'll eventually give Expanded a shot, Luipaard. It has even more options and variety than Movie, and no
GLR!