Hello and welcome to the forum. There are several postings in the Vegas section on Ceasars Palace--you should find lots of helpful information there. Vegas is a great choice. Happy Planning.
Congrats and welcome. There is another newbie who just posted who is getting married in the Caymans next month. You should find lots of useful info on this site to help with your planning. Good Luck.
Welcome to the forum. Your wedding date is just a few weeks away! Cayman is a beautiful island! Please ensure you post a review and pics after your wedding!
All of the dresses are pretty and you look great in all of them--your FI will be pleased. However to narrow your choices down I would go with..in order of preference: 2, 1, 3