The 20EN was my favourite overall of that generation (the CL I have is very refined though, but needs a warm room now it's getting on in years, despite being practically "new").
Of the later ones, the MMC4 was a good all-rounder but again, the 2 and 1 had something in terms of refinement. I'd personally say that you needed a "universal bracket" and an "audiophile separates" turntable/arm system for these latter cartridges to give of their very best, as Beograms of this era were getting a bit frail in internal construction under the lovely styling, sadly (lots of wafer thin plastic to resonate and possibly mask the differences in replay quality).