A Nord is a Nord and a Moog is a Moog
I have a NL2X and a Voyager Old School. The Nord can produce sounds that are similar to the Moog's basic sounds when comparing single oscillators with similar settings.
The big difference for my ears starts when using two oscillators: there is this analog factor", some kind of non-reproducibility that broadens the sound, makes it actually warmer, especially when playing with the filter parameters. You can't get the identical settings twice, and there are always some other influences (warmth of the synth, duration since the was powered on ...).
The 2X filters are comparatively harsh and clean.
The Nord Leads are very versatile and of course polyphonic, the "lead" Moogs are specialists for the Moog sound - and that's what they do best