What new gen Challenger is best and Why?

OK update: So after looking at several new and used I found this 2010 R/T with 6500 miles on it and every available option for that year. Got it for a great price and absolutely LOVE it! The previous owner added a BBK throttle body, K&N CAI and a Hypertech Tuner. I added R/T side stripes. still rides, looks and smells new.