"Hokey religions and ancient weapons are no match for a good blaster at your side, kid... I’ve flown from one side of this galaxy to the other. I’ve seen a lot of strange stuff, but I’ve never seen anything to make me believe there’s one all-powerful Force controlling everything. There’s no mystical energy field controls my destiny! It’s all a lot of simple tricks and nonsense."
I'd refuse to learn the ways of the Force specifically because of this. Because it's a trap. Never give the inner darkness what it needs to become powerful in the first place, and its temptations will be worthless.
I have a lot of pain and social anxiety, spurned by a lot of horrifying life experiences and anger towards injustice. Yet, I also have a strong sense of honor. I'd consider the Force in general to be too dangerous to use, and would look for every possible non-Force solution to any problem I had.
Both have they pros and cons, Sith are too selfish and treacherous in many cases, Jedi are too soft and conservative sometimes, so it's an tough call, because I am far more logical then emotional, I am more likely to be a Jedi then a Sith, even though some of the strongest Siths have become quite logical, like Darth Tyranus and Darth Vader, and also I am not an evil person. Sith are still cool, when they are not betraying each other every five seconds, if I was Sith, I would have try maintain as much of my standards as I can, and not using the Death Star, I prefer to conquer the star without destroying it, just as I did, in Empire at War, and I would not have too much of a moral problem with crashing the rebels. :)
Sith, I'm an angry person at heart. I personally believe that because of the way the Jedi's limit themselves is what leads to Sith or just darkness in general, their are way too many situations that don't go in their favor and tempt them constantly everyday to do things they aren't able to.
Course I could be wrong cause I'm not very knowledgeable on the Star Wars universe.