Need Fashion Help

I'm going to my friend's bridal shower in Washington D.C. in 4 weeks.

I need a sassy dress.

The bridal shower is going to be held here:
http://www.cocosala.com/

It's described as very "Sex and the City" -ish.

I'm trying to decide between two very different dresses.

http://www.modcloth.com/Womens/Dresses/-Blurring-By-Dress


http://www.modcloth.com/Womens/Dresses/-Sentimental-Journey-Dress

Which one do you like better?? HELP!!!!