I mainly (only) play ranked, so that's Summoner's Rift. I like the 3v3 map (Twisted Treeline) too. Favorite champs? That's a tough one. I play any role except mid, mostly using Renekton, Volibear, Vi, Skarner, Tristana, Jinx, Lulu or Nautilus. I like heavy bruisers, because they're most suited for my "go in and destroy" playstyle.