Big traps give you the powerful look narrow shoulders or not. Think bane/ hardy in batman...narrow but he still looks jacked because of his traps.
i guess you like that look, it's all subjective
but as far as bodybuilding goes, it's generally accepted what I'm saying here
that all traps, no shoulders look is horrible in my book, even if it has some "freak" factor to it, it's the wrong type