I don't know about favorite, but I can tell you that Wyll is absolutely useless!
His Eldritch Blast never hits, and he goes down before even Shadowheart every time.
Or maybe you just don't know how to play a warlock. Wyll's eldritch blast was the reason my level two, three person party won against the harpies.
On a side note, at low levels, it's one of the most interesting fights in the game, imo.
And I agree that Shadowheart's stats (and domain) are the worst. But I prefer druids and bards to clerics, anyway.
