I like fireworks in general. That being said, I had issues with most (read all...) fireworks at WDW (I know I won't win any popularity contests here, but oh well, you need to know you're not alone!):
MK: Issue #1 - I will NOT find a spot to defend 30 minutes or an hour before. I'll either manage to squeeze somewhere at the last minute (sorry for ruining you defensive stance) and try not to stand in front of a child or someone shorter than me. But if there is a space and I fit into it, I'll take it. Otherwise, I'll find any other place in MK where I find I have a somewhat decent view of the sky, and that's that.
Issue #2 - My heart does little flips of childhood wonder seeing the fireworks behind the castle, like at the beginning of every movie I've loved since I was a kid. That is the one and only reason I plan on seeing them again, because otherwise, I found them pretty boring. I hated the Wishes song, and it was not at all energetic enough to accompany fireworks. Is it just me, or should there be a bit of boom or oomph to match fireworks? Anyway, I could just as well (better in fact) watch these fireworks in complete silence.
EPCOT: Fireworks themselves are fine. I have no idea what they are trying to do on the earth in the middle of the lake, and how on earth they think anyone sees anything they are projecting there. We had a good spot, and a good view, but seriously, that projection was useless. Maybe if I had binoculars?
DHS (Fantasmic): This one was the worst, IMHO. You sit there for ages, listening to some sort of crowd entertainment no one really cares about, and then you have a weird show about Mickey and good vs. evil, none of it really makes any sense at all except to fit in as many Disney characters as possible in a 20-minute show (or however long it actually lasts, I don't know). Some of the effects were cool, and fun. But after all the hype I'd read about before going, maybe my expectations were too high.
My parents saw the Star Wars fireworks on a SWW a couple years ago, and based on their video (yes, they are "those people" who film the fireworks!) those looked pretty good. As I'm going back to WDW next May, without SWW it doesn't look like I'll get to see SW fireworks this year. I'll look at the MK ones from some distance (to my DH's despair, who would prefer skipping them all completely!), and use the slightly lower crowds to ride things during the others