Boulder Colorado - Sparkler/Firecracker or whatever they are calling it now. ^_^!
No real comparison between the two. If you don't know the difference, I would really suggest saving your money and playing closer to home. Had a player pick up with the 16U MN Blizzard and go out there for the week as a "college recruitment" tool and play in the Sparkler. The player is on the watch list for U of Texas and I was contacted by Connie Clark looking for the players schedule out there. They did send an assisstant to watch one of her games at the Sparkler and that was the only college coach they saw all week other than a few at the All Star Games and the All American Game. The Blizzard finished 2nd in their bracket (#2 of 5 brackets). Played lots of games against quality opponents, but it was not a college showcase.
Fireworks on the other hand is loaded with coaches but you can't just buy your way in there.
I will say this, if you already have a relationship with a college program and are under consideration, they are in Colorado that weekend and will probably come see you wherever you play.
In some ways I think the Sparkler is the coolest tournament in the country. 300+ teams per age, breaks into 5 different brackets after pool so that your more likely to be in a bracket with teams you will be competitive with. Just wish they didn't bill it as college exposure and didn't use the All star and All american games to line their pockets in excess of what is necessary.