I've always been a Titleist man, but if there was a company I'd switch to, it is probably Taylor Made. Their drivers are solid, they have pretty badass irons and even their putter (the Spider in particular) is innovative and sophisticated.
The new r9 drivers look pretty sweet and I'm trying to get my hands on one so I can give everyone a proper review. Hopefully someone at Taylor Made is reading this. Taylor Made peeps -- send me a lefty and I'll throw up what I think about it. Don't be shy.