Maverick Rising was great, but it was also basically a MMX album w/random assortment of others. The further into the series the album went, the more the coverage tapered off, and there's still a lot of good stuff there. Case in point:
Interesting point nobody brings up: the song actually sounds like rooster calls made into a rock song. Seriously, try inserting some cock-a-doodle-doos in there. It's pretty funny...and awesome.
Annnd, I pretty much don't care about the genre, just try to maintain the intensity.
My other pick would be "Vs Vile":
Again, I don't care about genre, just find a way to maintain the feeling if you would.