League of Legends officially the #1 online game in the world for problems.
I've played hundreds of online games on the PC alone and hundreds more on consoles. I have to say that LOL takes the top spot for having the most amount of problems. You would think that them having over a billion dollars in revenue this year would allow them to create a system with enough redundancy that would allow them to keep the game running non-stop. I mean, seriously, I can't ever recall another online game CONSISTENTLY having this much fking problems.