I'm not going to make any recommendations, but just relate my experience. My original distributor lasted for more than 20 years with the original pickup coil. Covered in rust. The rust is a natural result of the spark generated at the end of the rotor button. It creates Ozone as the spark passes through air. Ozone is corrosive. So, with time, any metal inside the distributor will rust.
I picked up an almost new distributor (no rust inside) of the star wheel type. Found it in a Fiero in the pull-a-part yard. When I did the 3.4 upgrade, I had it installed into the engine. I would guess it's been about 6 years, now.
Last year, I had to replace it and go back with my original OEM distributor. The aftermarket star-wheel distributor was chewing up the plug wire terminals inside the distributor because the bearing or bushing in the top of the distributor was worn out. So badly that the star wheel tips were able to touch the stationary points.
This may not be common, but that's just what happened with mine. I put a new pickup coil into my OEM distributor and put it back into the 3.4.
One thing I do like about the star wheel is that if you wish to reposition the distributor to make easier access to the module harness, with a manual trans car, you can put it into third or fourth gear and lightly push the car to line up the tips of the stator and reluctor, rotate the distributor to line up the next set, then move your wires correspondingly and you're still in time. With the flat oem style, it's not as precise.