Video Game Meme Day 11 - Gaming System of Choice
This is the sort of question that aligns people into fanboy camps. And in ages past, that for me would've been Sega, given the legacy of the Mega Drive / SNES divide.
In practice, nowadays, I get all the systems as and when I can afford them (which, given my life of late, means I'm a generation behind still, but there we are). The system itself becomes irrelevent in the face of the games it offers, and multi-platform means that even that can be meaningless. So in short; I pick whichever system at the time has the games I want to play.