I am a little late to the party, but here are my two cents.
I think the front at SunRidge Canyon is pretty vanilla - no really great holes, nothing too memorable, nice but not great. The back is interesting, although there is not a good view on the back 9 at all, as you are playing in and out of a canyon.
FireRock is much more interesting and challenging. Good holes, better views, nice mix of fun holes with tough holes. A little longer and driver is not taken out of your hands as often. Better greens complexes, usually in better shape as well.
I would favor FireRock 7-3 or 8-2.