[SmG Bright]

This is a very tricky question..

It depends on which genre specifically, reason being:

At the moment, I don't have a favorite game, I hate "Gaming" in general at the moment.
Mainly because of It's competitive aspect, I hate seeing 12 year old's taking a fat deuce on me after I spent HOURS trying to level up / have fun in any shape or form.

Back when I was that annoying 12 year old, I'd probably say my favorite was any COD game, or Minecraft.