Pita pintas for pure breeds. Bresse get as big but we did not like them as much for taste.
They were 3.5 pounds at 16 weeks and 4.25 dressed at 20 weeks.
You can tell from the one in the back of the picture that the breast will be big on that one.
I did like the Dorking X Barred rock cross, but you would have to keep two flocks for that and they were no faster growing than the Pita Pintas. The Pinta Pintas grew faster than the EO Marraduna Basque but they are a good choice too.
To answer the earlier question about why I have these Spanish breeds, they have not been ruined for their dual purpose utility. Hatchery chickens do not have it and a lot of breeders do not care about how fast they put on meat or how many eggs they lay.
Those of us with the Pita Pintas and EO Basque know how well they lay and how fast they grow. Also, they do very well in the heat here and Pita Pintas are winter layers!