What to wear? A new series

The main part of wedding season has come to a close, and now I have a few upcoming off-season weddings to attend as a guest.  As fun as being a Bridesmaid is, I am relieved to be a simple guest for the next few months. However, one thing I struggle with when I'm not a Bridesmaid is what to wear. Today I went to Steinmart in search of a deal and I found two great dresses (with assistance via text from Bex). Then when I got home I started to think about where I would wear my new dresses. This led to another text exchange with my friend J-mandy, and then to me thinking up this new feature.

So up first is a wedding on Labor Day weekend: my friends from college Liz and Tim will wed in his hometown of Rochester, NY. I went to their engagement party last fall, you may remember the story. The Bride and Groom's families are very generously including out-of-town guests in a Friday night party, the wedding itself on Saturday and a BBQ at a lake house on Sunday. I'm so excited about all these fun events. But what to wear? I have 2 options for each of the 3 events. Please vote in the comment section, thanks :D

(please forgive the BB pics, I live alone and my digi doesn't have a self timer)

Friday night cocktail party at Groom's parents' home:

Banana Republic jersey and satin cocktail dress, BR clearance $49

Lilly Pulitzer beaded Jubilee dress, LP store $378

Saturday Ceremony - Catholic Church/Reception - Country Club:

Aqua full length sexy back Calvin Klein, Marshalls $40

Navy ruffled Eliza J, Nordstrom sale $69

Sunday BBQ at the Lake House:

Michael Kors maxi dress, Steinmart sale $48

Lilly Pulitzer cotton sundress, Warehouse sale 2010 $69