I've just completed The Telegraph's "Vote Match" test to see which party most matches my views. An option at the end allows you to deselect the parties which you wouldn't consider voting for - but as I wouldn't consider voting for most of those listed I didn't see much point - so I selected all.
The big surprise (for me, anyway) was that my top match was the BNP who nudged UKIP out by 2% (73% against 71% match).
However, I wouldn't place too much store in that as, according to Vote Match, the Green Party were a reasonably (OK, just under 50% match) close third! Considering that I answered that I believe AGW to be a myth and that my least concerns included the "environment"* - this is plainly ludicrous.
Perhaps the most revealing result, though, was that the two parties at the bottom were the Conservatives (23% match) and Labour (21%). Give it a go - but don't rule any party out of the decision and see what it recommends for you.
* As it happens, I am intensely concerned about the environment, but about real environmental issues in my own country and my own backyard - not about some made up scaremongering regarding some distant land over which I have and can have no control whatsoever.