We're in agreement here. Jack would be fun to hang out with (as good friends should be), gregarious and energetic. And he's damn cute, too. But Ennis has stolen my heart, and he'd be the one I'd stay with.
To be sure, this mystifies me somewhat - I'm so like Ennis in behavior and emotional restraint it's a little frightening, and so why then would I be drawn so strongly to a man who is as quiet and contemplative as I am?