Part 61 in the long run will get you just as far as part 141 with less regulation. Part 141 toutes it can get you your commercial faster however that doesn't really matter since you need 1000hrs to get in a regional anyway.

I've done both for a few years. Part 141 school you do what the school says, you be there when they tell you to, you do what they say you can do in the planes.

Part 61 you are the CLIENT. You are paying a locally ran company. You call and tell them when you want the plane out, fueled, and ready to go. You tell the cfi when you're available and he see's if he can fly. Not the other way around. Part 61 is more flexible. If you want to fly the plane to go take your family for a ride you can do that. 141 the schools won't let you. But once you have your PPL part 61 places will let you do everything your license will legally let you do.