Pardon my ignorance Rick (wid) but I don't have any idea what those graphs mean in terms of which speaker is better. Any insight, or link to some article would be very appreciated.

Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3