What I believe truly made League more fun
Playing one or two champions over and over again is boring. Today's system is all about one tricking, or only maining a couple champs. If you don't follow that system you are at a disadvantage as your opponents are most likely one tricks and are going to be far more experienced on their champion than you. Doesn't mean you can't play whatever you want and not climb, but you are far more likely to climb if you stick to one or two champions. I found having to play every role much more fun. It seemed as if games had a more diverse champion pool in general, and it made it so everyone actually had to know how to play each role. I think a system that showed your team mates your preferred roles but was more like the old system would make the game more fun as a whole.