I alternate with a few setups. I use the HB and Atra doubles and the HB triples for the dome. The doubles work best for me, then the triples. I have also tried the Sensor double, but it just doesn't get as close.
For the mug, I will use either an Atra or Sensor double, and every so often the Mach III.
I find that with facial hair (goatee), it's much easier to get into those tight areas with a slimmer faced blade (sensor, atra). I find it's much harder to carve with a triple.