they both look so amazing on you. I voted for #2 because I love the look of lace and I think the dress looks both classic and modern. The sash is a fall-ish color, yes, but the lace gives it a lighter feel, perfect for summer. #1 is lovely and I looove the drop waist but it seems so formal - i know your wedding is somewhat formal, but I just think #2 captures that innocent bride thing more. it's just so....pretty. #1 is more....bling (not in a bad way).
i love number 2. i love how it is a little bit more understated than the first one, although i love the first one also. i have never really liked a lot of sequins or glittery things, so i say go for the second one!!