I just finally bought the last 2. I've used Angels, Fight Club, and the Hunted. In order of calories burned, it goes: Angels, Fight club, then the Hunted. Here are some links to my Garmin 500 data (I know, I'm weak, but it's fun!)

Angels: http://connect.garmin.com/activity/59097369 Avg. power 226W, Max power 398W, total kJ 3265
Fight Club: http://connect.garmin.com/activity/60311212 Avg. power 222W, Max power 495W, total kJ 3163
The Hunted: http://connect.garmin.com/activity/59170848 Avg. power 225W, Max power 443W, total kJ 3359

Can't wait to try the last 2! I imagine revolver will burn less, as its 45 min vs. 60 minutes like the others. Hope that's useful information!