What choice would you make?

You're dating someone for three months and have met and spent a little time with your mate's brother and sister-in-law, as well as the sister and brother-in-law, but nobody else in the family. The holidays are coming up...do you make your first meeting with the family a holiday event? Or, instead, do you spend the holidays with your family since your mate has met them many times and has spent time with you & your family. Or, door #3, do you both spend the holidays with your respective families and maybe try to squeeze in some together time for the two of you?

My boyfriend has invited me to spend Thanskgiving with his family. But I don't really know any of them, though I am comfortable with his brother, sister and their spouses. Haven't met the parents, grandparents, aunts & uncles, and other family and everyone will be there. Yikes! It freaks me out a bit, but he seems to think it is a fine time to meet the family. Any thoughts? Any experience with this is so appreciated. Thanks!