Wedding Gown Styles For 2009

In terms of formality, which uniform should be worn?
This is the dress the woman is wearing:
http://www.florasdress.com/bridal-gowns/princess-a-line/a-line-princess-halter-top-chapel-train-stain-wedding-dress-for-brides-2009-style-wda1567.html
He’s Air Force, thinking of wearing his dress blues. Does that seem a little informal? My husband (who I asked for advice) said the rules don’t apply like that. They apply more as which uniform to wear for certain events.
But it seems to me (and the woman wearing this dress) that service blues are a little underdressed compared to the formality of this dress. What do you think?
Obviously we were off base. Thanks for the insight.
Honestly? AF dress blues look more formal than that dress does.
TaeYang – Wedding Dress – Music Video – FULL HD – 2009 – W/ Download Link + Lyrics