From a designer's point of view:
6 and 8 are tops (6 looks professional next to the rest) 6 is probably my favorite for a couple reasons:
a. I love oval labels on beer bottles aestically its pleasing to me.
b. its comical enough to not be horriably terrifying
c. its scarry enough to not be horriably "warm and fuzzy"
d. the type is clean, well thoughtout and well organized (the type in 7 is too hard to read for a label, the type in 8 doesn't feel strong enough to be by itself without anything else (though I love the simplicity of the label with blood stains) 1,2,4 they type feels to cliche (it doesn't have that slick look - no offence, but sort of like you did it in microsoft word - no offence)
e. its simple enough, yet complex enough - its a good logo from a designer's point of view and that is what I am.
I didn't want to offend you as these probably aren't for a brew you're getting ready to put out there on the national market and is just for friends/family/enemy's your trying to get drunk/children you want to scare so they don't drink but you asked for opinons and I gave mine and i figured I'd justify why I felt the way I did so that its at least constructive.
I don't label very often, but when I do I like to make something that looks professional so that when I give it to someone and the label looks like it could be purchased at a market they feel like I'm giving them a gift, and not that I'm too cheap to buy them a real beer. those are my .02 hope it helps.