Become an Blood Elf then level it up to 40, then use Enchantment of Witchcraft on it. You'll gain lots of gold if you use it on level 10, but if you use it to low then you'll have a hard time gaining experience.
Ones a religion the other is a craft.
It's a bit like saying:-
?Christianity or woodwork??
Groups like Wicca combine religious practices with the use of the craft thrown in, but it's not the only group which does this.
If you're more interested in being a ?Witch? rather than singing up to a new religion for worship... I would avoid both. However, if you want to find a new religion, and interested in witchcraft, then go for Wicca. Druids are not at all like Wiccans, and certainly don't brand themselves as witches.
Well for one, witchcraft is not a religion. There are several religions that utilize witchcraft, but in the end it's just a practice and can by used whether someone is religious or not.
Secondly, Druidism isn't a religion either. Druid is a title.