None of the parties on view are proposing to do what this country NEEDS, which is a massive change in certain areas. Unfortunately, the changes that we need aren't vote winners, and the impression I get is that the parties don't really care about improving the country, all they care about is getting voted into power. It's not an election campaign, it's a job interview.
If any party says that they will reduce benefits for those too lazy to work, make prison condition much worse, make punishment for criminals harsher and sort out immigration properly they will get my vote.
Unfortunately, the closest to doing what I feel needs to be done is the BNP, and I would trust those thugs as far as I could throw the entire party.
So in answer to the original question, none of the above.