Whatever you like to drink.
End of discussion.
Look, no wine really goes all that well with processed candy anyway.
So why not do what a lot of people in my ‘hood do: grab a bottle or two of decent white vino, several beers, and convert one of your kids’ pull carts into a mobile drinks cooler and turn the whole thing into a mobile party (this is assuming you aren’t driving that mobile party to/from anywhere, and are able to walk the entire distance – so it’s a tactic best used for chauffeuring toddlers through their local neighborhood Halloween adventures). Kids get their Halloween thrills, you get your block-party quota in, and everybody wins!
Also, and you’re probably not going to do this but just in case, don’t buy a crappy wine or a wine you probably won’t like just because it has a Werewolf on the label or something.
You’ve got a week to go in planning your Halloween party, people, don’t screw it up with bad juice dressed up in a seasonal costume by a bunch of marketing folks – because that would be a really scary way to toast the Hallow’s Eve festivities!