Congrats on getting your date! I just came back from Jamaica...I was on a resort-hunting trip for my daughter's wedding in 2010. I absolutely love Sandal's Negril...it is perfect for my daughter. I would classify it as "casual luxury". I loved the suites that are a walk out into the pool and the beach is right there. However, if you are looking for privacy in your pool area without ocean front, there are some really nice suites that have their own pools, gardens, private dining areas, etc. My personal preference is the ones that walk into the pool and are beachfront but I am picky about being beachfront.
The staff there are absolutely awesome...my daughter and I walked in without any appointment and the manager there spent so much time with us showing us around. It was quite the experience! I told him that we were not leaning towards Sandals due to the seemingly "inflexibility" by the corporate office. But Jeffery at Sandals' Negril changed my mind. He is awesome... The property is gorgeous and I am so excited that we are moving forward on setting a date for my daughter's wedding!
good luck and let me know if you have any other questions about the resort...we had a great tour. I have videos but not sure how to share them : ).