If you want support, I would stick with a pi. There is some support for odroid but you will run into bugs guaranteed, and as the devs don’t have any odroid boards its unlikely theyll be addressed anytime in the near future.
I’m sure we’re all hoping for more powerful pi’s but with the recent release of the raspberry pi zero and eben uptons conversation with Eric schmidt it would seem that power has been placed on the back burner in place of portability.
http://www.wsj.com/articles/BL-DGB-44214
Perhaps in the future maybe but I doubt anytime soon (but I could be wrong, you never know)
For simplicity and support I’d get a raspberry pi 2 and just stick with the pc for more powerful emulators for the time being.