Which of these dresses should I wear in my comp?

I have a competition this weekend, then another one next weekend (:S) and I just realized I haven't chosen a dress to wear yet! So I'd really appreciate it if you would take a look at my album below and tell me:

1. Which dress/es do you think matches my music the most?

2. Which one do you think is the prettiest? (just as a matter of interest..)

I know I have a lot of dresses by the way, it's because my step aunt's cousin or something used to skate, so she gave me a bunch of dresses. I'm going to sell some on eBay soon, just haven't gotten around to it...

The dresses:

http://s1230.photobucket.com/albums/ee484/skating7...

My music:

http://www.youtube.com/watch?v=ovO2od-Wr1Q

Also, I numbered each dress so you don't have to go to the effort of describing it or anything, haha. I also have another dress which is purple and silver. I have darkish brown hair, quite fair skin, and umm if it's relevant my program is around axel level... Oh, and I'm aware some of the dresses do not match my music whatsoever, I just thought I'd take pictures of them anyway.

Thanks for answering! <3