I am of the opinion that, well - the Witch has done nothing but help us out. The Nameless has done nothing but threaten us, and thus far the only thing we've gotten to tip the scales in our favor is the witch.
The witch is indeed being a bit shady, but she has been very helpful and we keep going to her for problems. Meanwhile the Nameless does stuff like 'has our friends attack us' and 'force us out of bed at night to give him our stuff' and 'gets upset when we get any kind of a defense to his crap', haha.