It took me a minute to remember which episode Won't Get Fooled Again, but now that I do I realize it is one of my favorite episode of the entire series. Seriously, don't skip it, it's a great episode, tons of fun, and if I remember correctly it does play a pretty big part in the arc of the show. You probably should be careful if you're going to be skipping episodes so much, you seem to be skipping some of the most important character and plot episodes. I don't remember the Princess trilogy that well, but I think it does play a pretty big role in the development of several of the characters, and their relationships. Plus it introduces one of the most important races in the later part of the show.