In the category, yes, hands down the SRT8 is the best value, period. The only reason you'd go with something else is because it's slower, or you care about the hood ornament and how people perceive you.
There's a $3k price difference between the Charger and 300 US, and your best bang-for-the-buck option is the SuperBee. We almost bought one, but the wife hated the yellow, and I don't have the patience to own a clean black car. 2013 Bees are available in white. I'd recommend the paddle shifters as a minimum if you're going the SuperBee route.
We drove everything else that could be considered competition with or without 4 doors: S4, S5, S6, CTS-v, C63 AMG, M5 (2009; no 2013s avail in May), ZL1, Boss 302. Nothing comes close to offering this amount of grin and utility for this little coin. That should be SRT's mantra.