I'm not an expert but here are my thoughts. I could never get on with Bridge so was happy to abandon it and use LR. It's great for cataloguing and like a number of other folk I do a lot of my basic editing in LR. It's quick and easy. For the occasional photo that deserves (not many of them) or needs more sophisticated editing, I then use Photoshop CS6 (accessing it via LR so that the finished product ends up in the LR catalogue).