WOW! I am a visiting east coaster and I've gotten to try some Jimmy John's subs on my past couple of trips to MI with my Michigander girlfriend.
I think the Italian Night Club with mayo is one of the best Italian subs I've EVER had, and I'm from North Jersey! I mean, most of what Jimmy John's has is average, but their bread is absolutely SUBLIME for subs...it really puts the whole experience over the top. Back east we're stuck with Quizno's and Subway for chains (luckily there are plenty of good Mom and Pop's). Jimmy John's is far far superior.