I don't care about narrowbody vs widebody but I vastly prefer 2-3-2 and 2-4-2 seating over 3-3 in Y. If it's something like a 777 with 3-3-3 or 3-4-3 seating then I don't think it's any better than a narrowbody plane except that the ratio of overhead bins to passengers is a bit better.

If we're talking J then I prefer whatever plane has open award seats