Who is more likely to RSVP on time?

Probably none of them lol

Lol yes this. My family is decent with RSVPing but we are so close most of them assumed they didn't actually have to go on the website and check yes haha. FH's family will probably just not RSVP if they aren't coming so we'll have to check on all of them.

I think my friends will be good, and most of my family too. My biggest concern would probably be my FH's family lol

Absolutely this!

I think my FHs immediate family and everyone we talk to and see more often than anyone else.

I think my family will do well, but no idea about fiance's family! There's just so many of them lol. I think our friends won't be that great at doing the formal RSVP, but will rather just tell us in person

Friends. My first RSVP was a long-time family friend. Easy-peasy

Hmm, friends probably.

FH's family. They are in the area and they don't have to make out of town travel arrangements, so I can see them RSVP's quicker.

We are still 6 months out. We've sent Save the Dates but no official invitations yet and surprisingly already have about 20% of our RSVPs officially back. I'd say for us, its easier to get RSVPs back from younger people like our friends and cousins because they are more tech savvy about going to the website. Something else I found that helped was teaching my parents how to do it so they can help our other relatives.

I don't think either will