I'm going to have to say Thor on account of not knowing who the other guy is.

Tom Hanks vs Dan Akroyd

Dan Akroyd. Papa Shongo is the god of thunder in Africa.

X files vs X- 1

X-Files

Bruce Campbell or Bill Murray

Bruce Campbell, Murray is a jerk in real life.

Gothic tales vs horror tales

Tough one. Love both. Thought they were both kind of the same thing

Horror



Watermelon vs pineapple

pineapple


Poseidon vs Neptune

Neptune.

Being able to have your memory of BOTH of these movies erased:

The Neverending Story
Labyrinth

...and watching one again, for the "first time"...
Though your choice renders the other one out of existence, you will never know, or have ever known it, and nobody would ever see it again.

Never-ending Story

Charles Manson vs. Marilyn Manson

Charles Manson.
Marylin Manson is guy who should be in jail.
Ghouls vs Imps

Imps

Dill pickles or coleslaw