Feel free to dig through the schedule for the Jan 13 info, but this is what US says about Dec 09:
CLT - 552 daily flights w/ 24 international destinations (NOT international flights, which would be higher)
PHL - 409 daily flights w/ 25 international destinations ("")
PHX - 270 daily flights w/ 13 international destinations ("")
Wrong question re: PHL 190's vs rest of domestic fleet since airplanes aren't technically based in particular places (where is an E190 that spends the day flying BOS/LGA "based"). Even the crew ratios are not so cut and dried - most crew bases have more captains than FO's - but here's the number of lines:
PHL E190 = 37 lines
PHL 737/A319 = 128 lines
PHL A330/B757/67I = 81 lines
Jim