Miyavi, great guitarist but i can't stand his show-off and smug attitude. I only liked him in Due'le quartz.
Gazette, used to obsess over them in highschool(my 'gateway' band), but now i find Ruki's vocal style too nasal
Most of the deathcore types, i don't like how they brought the generic 'western' chugchug br00tal style of guitar playinginto visual rock, along with the deathcore fanbase who have no clue what visual kei is nor do they respect the style.