here is my comments for the St. Matthew Passions i've listened.
   Conductor        Recorded year    Total time
-1 Karl Richter         1958           197:47
-2 Herbert von Karajan  1972           204:42
-3 Ton Koopman          2005           154:07

note -1
Considered the best Bach performer, Karl Richter show with
this powerful & great Passion his deep artistry. It's superb.

note -2
My favorite recording of the work. The opening chorus is
especially fabulous. This is not Bach's Matthew Passion:
it is von Karajan's and is great!

note -3
so far N/A. I've not listend enough for comments. :)