You only have one whole day in Epcot, how are you spending the day and where are you eating?
Just like we did in November.
Got there right at opening.
Stood in line for over an hour for Test Track
Rode Mission Space on a FP
Spoiled FOTL kids (and DH) didn't want to wait in any more lines, so no Soarin'

,
(yeah, yeah, I know, we should have pulled the Soarin' FP first, but as we are spending a week shortly at DL for a cheerleading competition, TT and MS were the two the kids really wanted to ride - Soarin' could wait till California)
so walked over to Teppanyaki and cancelled ADR's.
Walked the rest of the way through World Showcase with antsy kids and husband who wanted Dueling Dragons.
Went "home" to Universal and FOTL
Returned for a phenominal evening, albeit FREEZING (night it snowed in Orlando), with a magical gathering/family reunion/anniversary party at Rose and Crown and special viewing for Illuminations.
Actually, we were huddled under the space heaters Disney put out on the patio for us and which were conveniently placed next to the bar. Great viewing! But the magic might also have been rather enhanced by the drinks being consumed in copious amounts to create a placebo warming effect

I don't think I could have appreciated the fire effect in Illuminations more than I did that night, as you could feel the warmth across the lagoon!