With respect to the keyword sets, I agree completely. I've (among others) argued since day one for larger keyword sets, which are functional in all modules (at least Library and Develop).
That said, I've found that using the 'Most Recent' set, combined with the 'Suggested Keywords' panel, goes a fair distance toward satisfying my larger set wish.
Let your voice be heard at Adobe. File a Feature Request, the link's on the tool bar above.