The other day, I looked into the Catholic Rite of Marriage (which had a new edition come out this year). I thought some of the things were interesting.
For example, Catholics don't believe in the superstition that the bride and groom can't see each other before the wedding. (Catholicism is against all superstition, as a general rule.) As a result, it is recommended that the bride and groom stand outside the church before the wedding, so they can welcome everyone as they arrive. I think that sounds like a good idea.
The typical American wedding starts with the priest and groom at the altar. Then they play "Here Comes the Bride", as the bride goes down the aisle. At the end, the bride's father gives her away to the groom.
None of that happens in a Catholic wedding. Instead, Catholic weddings follow the normal procession rules, which means the bride and groom go together, not separately. Also, the father does not give his father away, which is fine by me, because that is sort of a sexist tradition to begin with.
Of course, the rules and guidelines can be adapted for pastoral reasons, and I'm sure many Catholics have American-style weddings, not Catholic-style weddings. I know which one I'd rather go with! (Hint: the one where I do things, not the one where I hide in the background while everyone goes gaga over fancy dresses.)