Snarler. He comes with 100 resists that you can increase to about 175 via training. 1.00 atk speed is nice and all but this guy will resist a lot of spells thrown at him.
Snarler doesn't come with the 100 resists. My guildie tried farming Snarler; he had to wait for 5 hours and when Snarler finally spawned and was tamed, the tooltip showed that he had 0 resists.