These two show up in a lot of my lists. Whether playing Cygnar or Mercs being able to ignore things like Safe Passage, Wind Wall, etc, plus being able to shoot incoporeal models, is just great. Plus they are one of the few damage buffs Cygnar and Mercs have access to. Holt adds some nice shooting as well. Hard to complain about RAT 8 handcannons.
The colours reflect the armies I have. Purple and grey for my Highborn, and blue and yellow for my Cygnar.