63 for the US wedding; about 20 of whom were friends of my parents or my mother's cousins who I wouldn't have invited if it had been up to me, but when your parents are paying for it they get to have their way, I guess. It was a nice size, though. Only my in-laws and one SIL were able to come from the UK, so we had a reception there a week later and that was only about 44 or so. I loved getting to wear the dress twice and have two sets of pictures (though the UK ones weren't professional.)
We had about 80 attend of 115 invited. It was a good number -- we got to talk to everyone, and really spent quality time with people over the weekend. There were some family members who just couldn't make it, and it would have been really nice to have them there. I don't think we would have invited anyone else though.
We had 110 RSVP and 105 in attendance for the wedding. I thought it was a good number, although I would have preferred inviting more of our friends and less of our parents' friends, especially considering that we paid for everything. His parents tried to get us to invite all of their friends and extended family, which would have meant we needed a new venue because we'd be close to doubling the guest list, and we refused to budge on that.
The following week, we had a second reception because it's the thing to do in DH's family's country. The purpose of it is to more or less welcome and show off the bride to the family. There were about 300 people there, and only 12 from my side. It was fun, but would have been more fun/less awkward if there was alcohol involved.
Everything wedding-related was alcohol-free due to reasons of religion, alcoholism, and certain folks not knowing how to behave after they had had a few adult beverages. I feel like our wedding was a bit boring for our non-abstaining guests for that reason, but there's nothing I can do about it now, so I try not to dwell on it.