cjacek
Analogue Enthusiast
That's a tough call 'cause both seem very reasonable decks. I think what matters most is condition of the deck in question. IMHO, any audible difference would be due to one deck being in a better condition than the next.
You can do a simple but effective test by recording a set of (steady) frequencies, from the bottom to the top, noting what the decks were originally factory spec'd to (from the manual), listenning to how faithfully each of the recorders reproduces those (vs the original signal) and pick the one, as your "master recorder / reproducer", which does a better job. (Prior to the tests, clean the tape path).