Here's how I see it:
Wii U because Nintendo exclusives are awesome, but there was no way I was going to buy it at launch after what happened with the 3DS launch. :/ Will buy this fall probably.
PS4 for whatever third-party games interest me (Thief). Would like to buy it next year if possible. Definitely more interested in PS4 than I ever was about the PS3 (except maybe in 2009 when it got several games I sort of liked).
3DS because the DS is my #1 favorite game system of all time, and it has plenty of awesome games both already released and in the works.
PC mainly for indies and select third-party games I can run well with mid-range hardware.
3DS Friend Code: 0645 - 5827 - 5788
WayForward Kickstarter is best kickstarter: http://www.kickstarter.com/projects/1236620800/shantae-half-genie-hero