Which monster do you like the most in Heroes 5 (level 6)?

I like Ents, Knight Isabel, and Paladins. These are excellent units, and they can help in any situation. But I also have a favorite that won't always help, but if you create the right situation and do it skillfully, it can kill as many enemies as the three units mentioned above combined! These are Jarls, awesome guys! You just need to know how to use them!