All other things being equal I'd chose proximity to home/school as you'll be going there A LOT and often for quick visits (like tightening) and you'll want to be able to race there around school, sports practice, etc. And I'd echo flexibility in rescheduling. I am finding I book an appointment that is 6 weeks out for a day/time that works only to have something with school or sports or my work come up and need to reschedule. Our practice has been really accommodating.
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.