I have an E220 Coupe, bought brand new by my dad in 94.
It has 62,000 miles on it and all the typical things that seem to be common faults have failed in this car.
The list is:
Sagging headliner
Seat belt extenders
Wiring harness.

Other than that, it's never skipped a beat, hasn't leaking anything, hasn't broken anything. We also had an E220 sedan that covered 150,000+ miles, and at the time the 220 Coupe only had maybe 20,000 miles, and the engine/gearbox was indistinguishable, not to mention you couldn't tell which car was older/newer.

I think a W202 C220 is a good choice, and out of the options you have the only one that won't be embarrassing to drive.
There is also the C200 which may come in a smoother shifting 5 speed gearbox, albeit supposedly less reliable.

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Smoke Silver 1994 E220 Coupe Automatic
0 kilometers 6 September 1994
100,635 kilometers - 6 September 2010