I'm going to get flamed for this, but I like PCs.
The reason for this is power. I love game mods, I love games with a powerful sandbox feature, I love how just about everything either starts out on the PC or gets ported to it after a while, and I love Internet play.
The latter of those three will soon be aided by consoles as well, but I doubt the other two will. Overall, PC is the single most flexible system we have available.
Anything you can do with consoles, you can do with PCs. Do you like controllers over keyboards and mice? You can get them
here and many other places. Like simplicity? Most games just require that you install them, no big deal. Like using your T.V. for the images? Thanks to
S Video, you can do that too.