We live right in the middle of both our families. DH's family lives about 1.5 hours north of us. My family (sis, her fam, and my mom) all live in a town about 2 hours in the opposite direction. It obviously makes sense for us to host if we want to see both families. That's what we did last year and it worked out well.
However, this year my sister really wants to host. Rightfully so. With our wedding, her pregnancy (had her baby last week), etc, she was traveling back and forth from our area to her area every few days so at this point she just wants to stay put.
That's totally fine, but now requires DH and I to pick where we want to go to spend the holiday. Oh the joys of a merging family! His family will be totally fine if we don't go spend the day with them ... my sister on the other hand is holiday happy and will be SUPER disappointed if we aren't there -- so I think that'll be making our decision for us.
How do you deal with Thanksgiving and two families?