Hey thanks for the list delver. That must've taken forever to make.
Here are my opinions for a couple of mons.
Krabby Darumaka and Cranidos for B Rank for sure. Their scarf sets outspeed every unboosted pokemon in the tier and they all hit like a truck due to their high attack stats. Krabby has an amazing STAB attack in Crabhammer who seriously plows through things. Darumaka is just a monster. It hits everything just so hard. When the opponent doesn't have a bulky water type available you'd be begging for a miss. Which unfortenately happens quite often. But the power is just amazing. Cranidos is the same as Darumaka, hits like a truck but misses often (Darumaka has hustle, Cranidos has Stone Edge missing) But if these guys dont miss their attacks they will kill a thing or two, maybe three.