Due to the way I play ( I'm left handed, and I play with my strings strung right handed, on a left handed guitar ), and the size of hand, I have to anchor my pinky, otherwise moving my left hand would result in me nudging the strings and making them ring like a mother fucker, and my neck is not too large, so my hand towers over the neck.
Try what is best for you, though, don't just take others advice, cause it might not be the best for you, blah.