iv not had any dealings with Comed aviation at blackpool up until today in fact. iv got an aerobatics session booked with them in about a weeks time (apparently they have a good aerobat.)
i learned at westair, got to say that their the most professional organisation that iv ever come across. (and no i dont work for them!) you know that your in safe hands with them, unlike some places that i have been to. they are a bit on the expensive side though. but they are good. it depends on what you want.
good luck with what ever you decide!