if your aim is to hear the source recording in the most accurate way, then no, graphs trump even your ear.
one needs to decide if the goal is to:
A) is to be true to the source recording because in doing this you are most likely to hear the music as it was recorded.
B) is to connect with the music despite (or because of) colorations and distortions that present to you (the listener) simulations of events that happen when one encounters a performance in real life.
BOTH versions are perfectly valid, and if one connects with the music by choosing choice A, then that is the obvious choice. I find both versions to be very compelling, and depending on the music I'm listening to (and my mood), I may choose one over the other. I'm just stating all this to suggest that seeking technical excellence is easier BECAUSE of graphs. Everything else is more-or-less based on personal experience and word-of-mouth from people who you trust based on shared listening experience. So no, there really is no better way I can think of. We are really lucky to have a forum that allows us to discuss in detail these things with others. That's the only other way I know, but it's not better.
Edited by DavidMahler - 11/16/12 at 9:43pm