I don't know what I can tell you either. My average is probably 5 wins a run at most, maybe slightly less (one day I'll get serious about the format and start tracking I guess.) In general, I would probably just recommend
ADWCTA in general.
1) He co-creates the tool Heartharena, which I assume you know about, but if not, you should probably look into it. It helps you make better decks.
2) He hosts videos of arena runs. I haven't really seen much of them, I really only watch his podcast, but they're probably solid. co-op's are kind of cool, since they facilitate discussion.
hafu, ratsmah and kripparian are also people that stream arena whom are known to be very solid. idk if they're all that great as tutorials, however. kripp just whines about rng lately, from what I've heard.