Hey, my time to shine!
I work in laptop/tablet repair for a relatively large repair facility that handles contracts for several of the post-purchase care providers worldwide.
Not too long ago we began servicing Apple hardware, which involves a lot of odd bits (at least compared to HP/Dell/Lenovo/Asus/etc). We use Wiha screwdrivers for the phillips/flathead screwdrivers, but bought a couple sets from iFixIt that have been pretty high quality. The larger sets come with a nice quality driver and pretty solid bits, we're rough on tools and I've only ever seen one bit break due to some pretty unorthodox usage.
Sizes of note are a full run from T2-T10, as well as T15, T20, and a few other large sizes. The T7 and upwards of Torx bits are all security bits, they also have P2, P5, and P6, as well as several Y bit drivers. I'm not sure of the CoO but I'm a big fan. A friend of mine got the 70-something bit Kobalt kit and was also impressed aside from the driver, I have the smaller Kobalt one at home and it's not awful but I wish the driver were a bit thicker.
The iFixIt kits come with a nice carrying case, tweezers, guitar pick looking things to aid in removing display glass/LCD assemblies from tablet/cell phone touchscreen assemblies. I've heard good things about their iOpener heating pad as well, but I have no personal experience with it -- we're doing things with a heat gun to a pretty solid level of success.