I would never answer a question like this. If I suggest another hubber, it is in response to a question, and I have read the hubs written by the other person, and feel they provide great information on a particular topic.
If somebody is your favorite, then you can
read every hub they write
vote on it
google plus it
use the blog it button in the share it area
use link in your hub, blot or website
But to ask who is your favorite hubber, I don't really think is appropriate, unless you want good info on a particular topic, then others will list hubbers that they think will help you.