*rhyme*
I think COM is a probably the easiest on yourself. If you've got SYN and SAB or two RAVs going, most battles are a breeze. But sometimes (like when Fang intially joins the party) I don't mind using RAV. It's also pretty straightforward. The only deviation from magic-spam might be when you've got something launched and you go for a shorter ATB charge to keep them in the air.
And you guys? I'd be interested to hear if someone prefers to make the party leader the only MED or even if they use them in a SYN or SAB role. SEN would be quite boring, I imagine.