How does my bridesman and groomsman walk down the aisle?

Side by side? Or one behind the other?

It really doesn't make a difference, like @Heather said, if they aren't comfortable no big deal they can just follow behind the other

FH has 4 guys and I have two women and 1 guy. We are sending in all the groomsmen, then him, then the bridesmaids, then me.

FH was in a wedding last year and walked down the aisle with the bridesman. They played it up and it was really funny. If they're comfortable with that, I would go for it.

I'll have two bridesmen on my side and they'll be walking alone followed by FH's groomsmen. We only have 4 per side so timing isn't an issue.

I was a groomswoman a couple weeks ago and just walked with one of the bridesmaid. I thought it worked well. Otherwise just have them walk by themselves.