Having done the dessert party, it's a tough call. Feeling the heat from the flames in the viewing area is pretty cool, and hanging out with storm troopers while chugging an ice cold yungling, and tamping down pita/hummus/ capicolla sammiches until you're near bursting is pretty cool.
OTOH, I grew up on those old skule Disney movies, so I REALLY like F!. My kids and wife were not too enthused about catching F! again. I think if you are old school disney, you might enjoy F! more than the next person. I'm also a SW fan, but I think the SW party is a one and done for us. DOn't get me wrong, it was awesome!