So is it common for your brother not to be your best man?

[CraigRT]

I was best man for my cousin who has 4 of his own brothers.

There is no general rule obviously...

 

[FoBoT]

i dunno
my 'best man' was my best friend from high school, not my younger brother

i don't recall thinking about it or considering my brother

but then we fought a lot, so i dunno