Camaro easily.
V6 version has 306HP compared to the Dodge V6 with 250HP.
0-60mph in 6.0 seconds for Camaro V6.
0-60mph in 8.0 seconds for Charger V6.
Charger has two V6 engines. The 250HP is the more powerful V6.
Camaro SS and Charger SRT-8 both have around 425HP.
Charger has 2 V8's. The SRT-8 is the more powerful V8.
0-60mph in 4.9 seconds for both cars.
Top Speed of Charger SRT-8 is 170mph.
Top Speed of Camaro is 174mph.
So whatever engine you get, the Camaro is better.
With the Charger having a soft suspension from a Mercedes E class, as well as much heavier weight than a Camaro, the Camaro outhandles it and performs bettwe in every way.