The only objectively fair option is Games. All those other things would have your standing decided by subjective opinion.
Even games would be subjective - if I'm really good at fighting games, but you're really good at online multiplayer FPS, how do you quantify the skill difference between us? What about someone who is really good at (and really enjoys) single-player JRPGs - do you completely dismiss their skill-set out of hand because it's not competitive, or do you have to find a way to scale skill at creating optimal Diablo character builds or getting the platinum trophy in a game like Dragon Age when someone completes the hardest difficulty? Do speed runners count for more or less than people who play games as they were intended? What about people who play cooperative games that don't have direct PvP options? Puzzle games? People who just chase as many achievements as they can for max gamer score?
Worse, how do you rank someone who spent 200 hours building an intricate and beautiful palace in Minecraft, or someone who built an operational clockwork computer in Little Big Planet? Like it or not, those are also games - and saying "this measure of skill counts but this other one doesn't" is itself an incredibly subjective decision.
Usually games-related animanga refers to one specific game, maybe with a few offshoots for filler arcs and specials or when they're trying to tie in a new product. ---
(\/)(\/)|-| There are precious few at ease / With moral ambiguities / So we act as though they don't exist.