Typically speaking, if it's metal/hard rock I'm down. I like all vocal ranges so no reservations there. If there's anyone else you like a lot, I'm down to hear it. Also I really enjoy acoustic stuff, so if you have any of that, I'm down. Andy McKee who we use for the podcast intro/outro has become a standby favorite as well.
As far as Coheed, I basically celebrate their whole catalog. I've been listening to them since their first album and coincidentally they're from the same place I grew up. So yeah, much love for them. If you haven't listened in awhile, I suggest checking out both their first and fourth albums - Second Stage Turbine Blade and Good Apollo, I'm Burning Star IV, Volume Two: No World for Tomorrow, respectively. Both make for some great driving music and just stuff that's fun to rock out to.
Here's one of my favorites from the fourth album:
Gravemakers & Gunslingers