Quote Originally Posted by Panache
DD,

The bride has made a request of you. The day is hers, honor the request.
A friendship is more important than a kilt. Though it is a shame because you are quite dapper in your full formal rig. I'm sure you pull off a suit or tux with equal flair.

Cheers
I'd honor the request and then figure out how important that relationship is. Then probably not go. Stuff her , I'd let your buddy know that is why I wasn't going either. Going formal is a sign of respect and effort. Outshine the bride? Horsehockey! She has another agenda. Any bets?