Philosophy is really not easy..
There's no such thing as an 'easy a-level', you have to work very hard!
Sociology is supposed to be good, as I've heard, but it's learning a lot of case studies, but if you're interested in that, go for it :P
Psychology is also really interesting and that's my favourite subject, I'm probably just biased though.
But, no A-levels are not a walk in the park