I'm pleased with my Wii U so far. There's not a major abundance of games, but I have about 15-16 amazing titles right now which is more than enough for me, and many more to come.
My 3DS has had some great titles, though a good few of the games I have are remakes, but they still have been putting out some quality titles.
I don't own the other 2 consoles, though I do own a 360. I'm thinking the major problem for me with upgrading would be there are not enough console exclusives yet. The majority of the big titles I can still get on my 360, I'm not really fond of buying a new console just for a graphical upgrade of a game.
Though I know in the next year or two the 360/PS3 will soon not get the ports, but until then that would be my issue with upgrading.
