MxPx is the band practically paved the way for the sissy bands you like, you should check them out. At least they were still punk, they just had the "voice" thing going on...and unfortunately that spread to bands who's music was considerably softer, like Simple Plan and Good Charlotte. But since you obviously like whiney music, then MxPx might be up your alley. They're early nineties, right within that range.