I agree, the Note 2 is just about the perfect device for me, but I've often felt that something just a bit bigger would be perfect. As I hold my Note 2 in landscape orientation to type this, my fingers are overlapping each other quite a bit behind the phone. I often interlock them as I type.
I was all set to pick up the Note 3, but since it is not tri-band, that is no longer an option in my book. The Galaxy Mega 6.3 just might do it for me, even with its 'midrange' specs.