Best arm workout routines

I do a series of supersets that encompass core, legs and arms.  It's about a 45 minute circuit if I do it twice.

For the arms component (besides traditional planks and pillar ball twists), I do 50 push-ups each circuit, as well as 10 pull-ups (2 sets through the circuit).

I also do a lot of work on rotator cuff rehab after smashing both collarbones a couple of times each, so exercises like using a rubber band attached to a doorknob and rotating my arm (bent at the elbow) away, laying on my side and doing a similar movement using a small dumbbell, as well as wall slides, etc.