Hi treeman,
well firstly they are different types of indicas, 24c is afghan in heritage.
yield I would say toof decay just has the edge, it's bushier and will form longer colas.
aroma on the 24c is sour funky, vs fruity sweet from toof decay.
they both like to colour up, however it's more common that it's the leaves on toof decay vs. the buds on 24c. We have however only been breeding with the green phenotypes of 24c as the colour came more strongly from the auto parent than the photo parent.
they are both very frosty varieties, 24c has more oily resin and is a better hash plant it's larger fan leaves and petioles develop more resin generally , but with tooth decay when you get to the little bud leaves they are heavily frosted.
Toof decay generally makes denser nugs, but I would say bag appeal on both is equally good, tough call to make that one.
the highs are different, 24c is heavier and more couch bound muchie inducing, whereas toof decay is more uplifting happy and creative for me.
hope that helps!