Ditto what Evan said. All of the CF builders have a slightly different tonal character, and they are also different from wood. Quantifying tone in any meaningful way is tough. Everyone hears differently and therefore judges tone individually. It might be possible to quantify aspects like bloom, relative strength of overtones, attack, sustain and even overall loudness (which is much harder than it appears). But still there would be discussion about which combination is better or "best". Ask four players and you will get five opinions.
From my experience, the Rainsong C-H (composite hybrid) series or others with uni-directional tops have the most wood-like and warmest tone. CA does well too with their Gx and dreadnought, but with less overall volume and projection. I am also quite pleased with the tone from my Emerald X20 and my old classic WS-1000. And I like the tone from my koa Taylor's and old Seagull S6 as well.