I prefer the F.I. Beetles for daily driving, as they can be very reliable. Bug people generally don't understand F.I. systems, and also tend to think older is more desireable. Usually ripping out the F.I. and going to carb is a mistake, provided you can find good working F.I. parts. They are still quite available in classifieds on the Samba and sometimes on Volkswebbin.
Superbeetles are certainly "Beetles" - and are identical from the dashboard back, as the differences are all in the front and dash. They changed to strut front suspension, larger trunk, and in 73 to a more modern dash and curved windshield. Enthusiasts claim they are the best riding and handling. However, like must strut suspension cars of that time, they can develop shimmies that take work to eliminate. Standard Beetles win for simplicity and parts availablility.
The Superbeetle design ceased production in 79 (or 80), but the standard Beetle stayed in production continuously through 2003 in Mexico, and before that in Brazil. They were just never imported into the USA. But as a result you can still get new factory-built engines and many genuine VW parts.
For daily driver use I think the best Beetles are really the late 90s to 2003 Mexican made Beetles. These have a more modern Digifant Engine Management System like the wtercooled VWs that controls both mixture and ignition. They also have hydraulic lifters that don't need adjusting (similar to the Vanagon waterboxer engine), a real spin-on full-flow oil filter, and thicker heads with 3/4" reach plugs that hold up very well. Otherwise it's a 1600cc Beetle engine. They also have standard front disk brakes. A number of these were imported by being "remanufactured" onto an older US registered chassis. I have two of them that my wife and I drive daily. My 2000 (on 73 chassis) also has A/C (new 134A system), has almost 60,000 miles and still runs like new. I've changed spark plugs twice, and otherwise only change the oil (synthetic) once a year and adjust the rear brakes. A very trouble-free car. You might keep an eye out for these "MexiBeetles."