Asking for the best supercharger is almost as bad as asking about the best cold air intake, muffler, etc. Answer depends on what makes "the best" the best for you.
As far as daily driving with one that generally isn't a problem. Only problem in that regard with my Vortech supercharger is that per the owners manual it shouldn't be allowed to cold-soak overnight below 25 degrees Fahrenheit unless you've got a block heater plugged in. Some days, such as today, I don't drive it to work since it's going to be cold-soaking in the work parking lot for nearly 9 hours at less than 10 degrees.
However to my knowledge most superchargers do not have that temperature limitation. I didn't know that about mine until after I bought it. For me it isn't that bad of a deal. I park it in our attached garage and on really cold days like today it can still be driven just not left out to cold-soak all day long. Even here at work I could start it up occasionally to keep the underhood temp above 20 degrees or so. A long-range remote start would be nice for that!
You should be aware that in general there are 2 types of superchargers. There's the long screw type that sits directly on top of the intake manifold and pulls air through the throttle body, and the centrifugal type that is arranged a bit like a turbocharger that sits off to the side and pushes the air through some plumbing to the throttle body. The first type generally builds power at lower rpms and is nice for towing, the second type builds power at higher rpms. I'm running a centrifugal - the magnuson mentioned above is the other type.