All the graphs can be informative even if being only one-dimensional... still, it helps to compare the different views, filters, and settings to figure out how they might relate to each other (or not so much).
Two different measurements (equalized) taken in rooms with polar opposite damping characteristics:
Which on-axis measured response at the main listening position (MLP) looks better?
IMO, although not having listened to the room highlighted in red, the more uneven (and maybe overly dry) yet extended response (green trace) should be a far "better" room for critical listening.
Wavelet Spectrogram:
RT60 Decay:
*some people argue that it's inappropriate to call it "reverb" time in small rooms, hence "reflection-decay" time seems more apt a descriptor