I would go with the WL or YC. I've seen GF (haven't stayed), and it isn't for me. And I do agree with the others - go with a theme that appeals to you. If you get the Travel Channel, check their website for a show called Great Hotels. AKL, BC and YC, and GF have been featured. Also, check
http://www.wdwig.com/ for pics.
The theming of the WL is great and the lobby is spectacular in my opinion. Check the prices on these, but the WL has honeymoon suites. They aren't exactly suites, but they have king beds and a HUGE jacuzzi tub (for two). There are only 4, and they are secluded. Ask for one on the MK side. When we went (1997), they weren't priced much more than the average WL room.
I also like the YC theming, but it isn't as WOW as WL. It is very tasteful. And I love the location of the YC (same as BC, BWI, Dolphin and Swan) where you can walk to the back (World Showcase) of Epcot. This is a great location for adults, and we spent every evening in the World Showcase. It is a great place to snack and get drinks (beer and wine) and stroll. They usually have a late fireworks show.
I would skip the packages. It is usually less expensive if you price things separately. I would splurge on the hotel and then save money by bringing snacks (we carried small snacks into the parks in a backpack) and drinks (including wine and beer if they appeal to you) to tide you over between meals. (We did this on our honeymoon.)
You can also save money by purchasing a hopper pass instead of the "length of stay" pass that comes in the package. For example, we didn't go to the parks at all on our first day. We arrived around 4 pm and we spent the evening at the Boardwalk (ESPN Club - it was football playoff season!) which is free. So why would you pay for a park pass for that day? We didn't go to parks on our last day either, since our plane left around noon. On top of that, you can get a hopper pass, and if you don't use a day or two, they don't expire, so you can use them next time (and if you honeymoon at WDW, there will be a next time!). Length of stay passes expire on your last day.
I hope that helps! Enjoy your honeymoon!