Afternoon, /vp/.

So I'm in a bit of a Poke-slump. I want to play Pokemon, aren't sure what to play.

I have:
Fire-Red
Soul-Silver
Y
Emerald
Diamond
Platinum
Black
White
Black2

Which should I play? Anything you'd suggest I do (Other than Nuzlocke) to make it more interesting? Mono-run, region-run?

I just want to be motivated to play Pokemon.