Tonal distribution in T-Max vs. Delta

In looking at various photos, by various photographers, using these two films (regardless of variables such as developer etc.) I generally find myself favoring the look of Delta for the way the tones are distributed. To my eye it seems that T Max photos render too many tones in the scene all as light gray, whereas Delta looks more brilliant to me. It seems to present those tones toward the white end of the black-white spectrum as a greater number of distinct separate tones. This is purely a subjective impression. I have no scientific basis whatever for saying this. I have two questions: 1.Do others see these films as looking that way? and 2.Is there any way this is objectively confirmed, such as in graphs of the 2 film's response to the color spectrum (i.e.: is one more panchromatic than the other?), or of the black-white (zone) spectrum?

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