Re: HOW does one decide?!
We don't have kids yet, but we've thought about it and while I have two brothers who are equally amazing, I would choose the middle brother probably.
Both are in long term healthy relationships, but middle brother and his wife both have long standing and very stable careers, they are about to have one child and they want MANY kids, they are a very fun loving couple, very sweet, they will be very relaxed and supportive parents. My siblings and parents all live in the same place, I have a huge extended family, and hubbys parents would be very involved too.
Now I know my oldest brother would be as well, but I also know he and his partner want one, maybe two kids, and both are going through some career changes right now anyway,etc.etc.
I wouldn't want either of our parents doing it simply because I want our parents to be GRANDparents not parents. They are finally at an age in their 50's where they have a little money and time to start enjoying themselves.
Not the mama...but an aunt to some awesome kiddos.