That length of driving I would personally find too much. DD1's school is a 30 minute round trip (well assuming no tractors on the road) and that is just about the maximum I like to do.

The school day can be surprisingly short, add to that "losing" so much time driving, it makes it a very short day. Also what would you do if you were sick, or DD2 sick? A shorter drive you can handle or even get a friendly school parent who lives near by to help out. Being so far away from the school, makes it harder for that network to develop.

Anything could happen in the future. Your plans could change dramatically, life can throw curve balls both good and bad. School A could start off really well, then go bad. I know myself, I loved the school for 2 years, but had major doubts at the start of this year and only just beginning to feel more positive.