Activity for Chantel

I have a dilemma with deciding my wedding shoes. I was thinking of flats because no one can even see your feet but I found some beautiful white heels with rhinestones that I like. I don't really want to wear them all night (just the ceremony) then...

My fiance has 5 guys and I have 4 girls. I'm having a hard time deciding who will walk with who? I don't really want one girl to walk with two guys. He has two best "men" and I have one maid of honor. Any advice to even things out?