I've been involved with Wicca for 10 years this coming January.
It's very difficult to define absoulutely logically what makes it interesting for me; but a lot of it is to do with the country in which I live (England), its landscape, its heart and its traditions. There is also a sense of the female side of the Divine in Wicca, which I found was almost entirely missing from Christianity. I'm male (and straight, before you ask!!), but it's still important IMHO, to acknowledge Goddess as well as God.
I became involved with it via a few talks I attended in January 1992, in London, given by Vivianne Crowley whio has written many books on Wicca (no relation to Alistair Crowley, BTW). I was interested in what I heard and ended up being initiated in October 1992.
Hope this answers your questions!