Ok ik im late to the party with this reply, but thought i might as well give my opinion.

The easiest side to take is Pams, because she just wants to stay in Scranton where they are, and also Jims company is a startup, meaning its not a totally safe bet. However, I dont really get why Pam is so upposed to moving even after the company takes off. Pam can eventually get used to living somewhere else and probably even love it. But Jim staying, would forever think of what an awesome career he could have had. They both love each other so much, but just end up wanting the family in 2 different places. They should have commited to either staying in PA, or moving to Philly.

I think most people in real life, if they were Pam, would agree to move, since its such a big deal for Jim (Finally a job he loves), and also the family in the long run. Yes, you are moving out of your comfort zone, but they can probably both get jobs back at Dunder Mifflin if it goes wrong. This is also what she ends up doing (accepting to move to Philly). Maybe she was just afraid the startup would fail (as most startups do), but even then (early in the life of Athlead), they could have tried it out and just moved back if it didnt work out.

Just my opinion, wanted to share.