I've recently bought a PSP, so I have played Dissidia a couple of weeks, altough not really interesting. Probably it is interesting, if you've played all the Final Fantasies (or atleast many of them), but I started with Final Fantasy X. Crisis Core is however better stuff. Nice plot and battle system. I'm at the final boss, but first completing all the (300 I think) side missions.
If I've beated those games I'll continue with Final Fantasy XII (really hard game O.o). Got stuck in an airship somewhere in the beginning of the game I think... June / August: three days full time Kingdom Hearts Birth by Sleep playing.
Also looking forward to Final Fantasy XIII, but I first have to spare for a Playstation 3/Xbox 360. The graphics look amazing and I really like the story for so far I've heard of it, but not really sure about gameplay.
Well, that was it for 2010

(Don't know when Agito XIII is coming? And Versus of course.)