I'd wear just about anything from Yves Saint Laurent and Chanel, which I can't say about any other house under the sun. Yves Saint Laurent's older fragrances (Kouros, Opium, Rive Gauche, Jazz, et al.) are my Holy Grails, scents with personality and verve, and even their recent barrel-scrapers like L'Homme and Elle are at least pleasant and wearable. Chanel just bottles pure, velvet-lined, diamond-studded gorgeousness; if there is an afterlife, I'm sure it smells like Coco parfum. But like YSL, even their lesser offerings are solid.
I can't say I've been disappointed with an entire line, but then I've never smelled the hyped-to-the-heavens likes of Serge Lutens, By Killian, or L'Artisan. Disappointment implies that my hopes had been dashed, and I've never gotten my hopes up for Versace, Nautica, Calvin Klein, Lacoste, et al. If they make something that impresses me, bonus, but I smell their testers expecting little and am usually proven right.