pep boys or midas?

hey guys, i have to get 2 new tires for my car and pep boys on 4th offers a slightly cheaper deal (midas is on 4th too) but was wondering if anyone had experience with service from either (i'd rather spend the extra $15 per tire if it means i'll be getting better tires and/or service)..

thoughts, experiences? please share as i don't know much about all things automotive...

am no expert either, but i go to Pep Boys for my inspections. They are pretty good about taking your phone number and calling you when ready, and you can wander around Staples to kill time

There is a Firestone dealer www.firestonecompleteautocare.com
at 1750 Bedford Ave (a few blocks off Flatbush just past Prospect Park).

I've bought tires there several times and found them extremely professional.