Beauty is so in the eye of the beholder. I know this sounds mind-blowing, but I'm not that enraptured by Jake's appearance. Yes, I can see why people find him handsome, and at times I myself think he's cute. He's charming on talk shows, and he dresses fairly well in a casual way. But he just doesn't ... grab me, you know what I mean? He always looks sort of the same, so his appearance strikes me as ... I don't know, predictable or facile or obvious or something. I feel that way when watching BBM, and I feel that way in RL
I rather share your feelings on Jake. Jake is definitely a good-looking man, but he's a bit too polished and, dare I say it, even a bit bland (in a physical way) for my tastes. In fact, he reminds me a little bit of a first cousin of mine, when that cousin was a younger man. Jake is quite charming, and seems to be a very fine human being, and these qualities add depth and nuance to his overall attractiveness.
At any rate, I prefer Jake as Jack in BBM over Jake outside the context of BBM, same as I do for Heath. And as much as I love Jack, I have to admit I've always been an Ennis man.