I love a game not because it pays great. To me if a game contains a great graphics and excellent sound effects or music...that's a great game. For example ; Yggdrasil and Quickspin have great graphics and top notch background music, some of their games contain dubstep music that suit the styles of the games.
To be honest, microgaming is one of the best software for online casino but I can see now it will be beaten by Yggdrasil, Quickspin and NetEnt has improved their games too! so MG, watch out for this masters of software!
I do believe that NetEnt will be on top soon.
And at last, my favorite game : Moon Goddess (5 reels, 30 paylines and up to 12 wilds on the last free spins).
The graphics are marvellous and the sounds are so addictive