My husband and I were married at Sea Breeze Point on the Boardwalk in April of 1999. We also honeymooned at the Boardwalk Inn. Being able to walk to Epcot or a little further to MGM was great! Plus, there is SO much to do at the Boardwalk and surrounding areas. We also took the Illuminations cruise after our ceremony and we were able to be picked up at the boat dock right there at the Boardwalk. The convenience of the Deluxe Resorts' locations is hard to beat--(most of them, anyway).
Our stay was for eight days and seven nights and with that much time in one place you better really like your resort. Make sure that it has plenty of other things to do and see when you want a break from going to the parks (which you probably will).
Although you'll be in the parks alot, the less time you spend getting to and from the parks the better. Keep that in mind when picking a resort, no matter which category you choose. You will get tired after a few hours in the park and going back to the resort to rest is definitely recommended.
We stayed off property for our one-year anniversary in order to save money (about a $1200). IT WAS A HUGE MISTAKE. We were so dissappointed that we decided to go ahead and try to get a room somewhere in WDW, but EVERYTHING was booked.
Although the moderate resorts at WDW are MUCH nicer than where we stayed off property, you might be disappointed if you choose that option. I was kicking myself for "going cheap" on our anniversary. Your honeymoon is a special one-time thing and if ever there was a time to splurge, this is it. I believe that it is worth it and that you'd regret not doing it. Although some out there will disagree with me for saying it, that was my experience.
My recommendations on where to stay are the Grand Floridian or the Boardwalk/Yatch/Beach Clubs. I recommend these because of the ease of transportation and the amount of things to do at or around the resorts.
I've never stayed at a moderate resort (see my visits below), mainly because I know that although they'd be fine, they wouldn't be a nice as where I'd stayed in the past so I'd always be a little disappointed.
My in-laws stayed at Dixie Landing (part of Port Orleans area, I believe) when we were married--which was a moderate resort. It was their first trip. Then they stayed at the Wilderness Lodge with us a few years later, although they thought we were paying too much since they enjoyed the Dixie Landing previously. After we got back, my mother-in-law said that she didn't realize what a big difference there would be in the resorts. She, like myself, plans on staying at deluxe resorts from now on.
You might also want to look into the Disney Vacation Club when you go, if you decide that you will be coming back regularly like we did. We joined in 2003, but I wish we would have joined on our honeymoon.
Good luck and congratulations on your upcoming wedding!