Personally I don't like the kitchen cabinets put in down the side, I prefer the U shape or either side with a stagger to allow you to walk passed, it's probably got a proper term for such a layout but I don't know what it is.
My preferred boat layout would be:50 to 55 ft trad stern, bedroom to rear, kitchen in the middle with side hatch, living room to front, solid fuel stove ideally further down towards the middle of the living area rather than stuck in the front corner.
That's my current "dream" boat but we all have different tastes, preferences and circumstances. Once I've got my boat I'll probably find out all the things I should of gone for instead.
Happy hunting