'Main' champ(s) feedback/questions

[quote=njdfan]In an effort to not be the weakest link on random 5v5 games, I've decided to try and just play a handful of champs and try to get better at them. My favs are Hecarim and Lissandra, I think I'm OK with Hecarim other than instances where I ult to initiate a teamfight and everyone miraculously decides to back off and the occasional Udyr or Shaco coutnerjungling me to oblivion. Lissandra on the other hand, I am really struggling with. I think I have her set up right and have her skills down, but I'm starting to wonder if she's as good a top champ as I think...I've been getting wrecked with her. Bad - most notably by Lulu and Rengar. If it's relevant I also manage to be the one person that's bad at playing Riven, so maybe it's a type of skill or champ that I'm just not good at. There's probably a reason everyone else is wrecking everyone with Riven and Liss and I'm not LOL. While I don't own them, I liked Pantheon before I sold him to get Riven and Karma and Fiora were a lot of fun when I tried them as free champs. I'm kind of coming to the train of thought of basing who I focus on which champs I see carrying games on the other team. Katarina is one of the first ones to come to mind. I'm also rather certain that I should buy either Yasuo, Lee Sin, or Xin Zhao...while I don't see them totally taking over games a lot, I really never see any of them get manhandled...figure there's probably a reason for that. Anyway, just kind of looking for feedback, figured that might be a good idea before I start spending IP on stuff :)[/quote]