Not that I can judge, seeing as how I don't do Halloween, but still.
There were a bunch of interesting costumes around though. A friend of mine is really tall and hyperflexible so he dressed up as Slenderman. It was surprisingly convincing. (he also got into a fight with a Dora the Explorer, so that was hilarious)
There was also a communist Darth Vader walking around. That was my personal favorite.
I aslo saw a bunch fo people in Homestuck cosplay. A while ago that would have surprised me, but now I barely batted an eyelid.
Strangely enough, every subsequent troll costume was lamer than the last. I first saw a girl in full Vriska get up, which was actually neat. Then I saw another girl in a mostly fine Karkat costume, except her hair was really short and straight for some reason, though still decent. And then there was a girl who had a very badly painted Capricorn symbol on her shirt and pure white facepaint on. That was literally the extent of her Gamzee cosplay. she wasn't even wearing horns, which is strange, because she's worn horns before. As in, outside the context of Halloween. Just randomly worn troll horns. Then there was another girl, whose entire John outfit was the long sockhoodie. Which was actually awesome, but still made for an incomplete costume.
YEAH THAT'S RIGHT, FRESHMEN GIRLS IN MY HIGH SCHOOL, I'M JUDGING YOUR HS COSPLAY IN THE INTERNET, AND I DEEM IT BAAAAAAAAAD