To me the two main indicators of a good game is if it plays well and it is fun.
By plays well I mean the controls actually work. So many times I have played a game that should be a great blast to play but the controls let it down too much. And fun is pretty self explanatory :lol:
Thing is for me graphics don't factor into how much I would enjoy a game. A game could be visually bland or even dated in terms of technical aspects. A game can be difficult too and it wouldn't bother me. So long as the game is fun to me then I couldn't give a hoot lol.