The only people on this list who appeal to me are Jay Chou and Tomoya Nagase (now). I like my men to look like... uh... men, with meat on their bones and all of their eyebrows in place, thank you very much. I could never go for the pretty, slinky, lovely hair, femme type. I mean, I want to be the pretty one
By far the most attractive male musicians for me in Japanese music are: Zeebra, Atsushi Yanaka from Tokyo Ska Paradise Orchestra, Shunsuke Kiyokiba, Koshi Inaba from B'z, Ken Hirai, anyone with eyebrows.
None of the Johnny's boys or visual kei artists do anything for me. They just exist as fangirl service.