Well, my first experience at Epcot was back in 1986. This was a vacation with my Dad and then step-mom. My Dad has rushed through every vacation we ever took together. I love him dearly, but on vacation, the man is a tornado. lol On that vacation we did every country in WS and the vast majority of FW. I remembered very little of it.
Last September we went to WDW. We this time being me and my honey. We focused more on FW. I feel like we barely scratched the surface. We had a great time, but we don't rush through things. Shockingly, I can recall everything we did in detail. We did venture over to WS, but the rain and the blisters on my toes from the adventures at DTD/PI the night before helped us to decide to call it a day early. Unfortunately, the rain also robbed us of the chance to see ToD parade. We would have stayed to see that, but it was not to be.
During our December vacation, we will be definately spending time in WS more than in FW. Now, this is not to say that we won't be there to ride TT, M:S, and SE because those are must do items. But, instead of seeing Innoventions or riding the JiYI, we will be more into seeing the holiday entertainment and regularly scheduled events in the WS. I loved WS the first time we went to Epcot. I really wanted to spend more time there last September, but you never get to do it all at WDW. lol
I highly suggest doing WS. Don't forget to get that little single page schedule of entertainment and events that goes along with the park map. It will help you be able to plan to catch some of the cool things that makes WS so special. Have a great trip! Mickey
PS. For an idea of what you might be able to see check out this website.....
http://pages.prodigy.net/stevesoares/