I'm gonna pick the Triton's simply on their workflow. All 3 sound good, I'm just better accustomed to Korg's, and the way you move around inside the box.
For EACH and EVERY musician out there!
Some like the simpler boards...(PSR anyone?!)...
Some like the MONSTERS (Aka: Kawai K5 / K5000 programmers)...
Some like the Analogs (Ion??? Waldorf???) and
Some like the Digital Playbacks...
Use your ears and listen to people but DON'T STOP MAKING YOUR MUSIC!!!