For four-door fun under $50k realistically optioned, I think I’d lean towards the SS because V8 and magnetic shocks, but the RS is way smaller and a hatchback... It’s a hard choice.
Of course, the only option for people who have to look at the outside of the car is the VW Golf R.
Wait, what about the Charger Scat-Pack? The Fusion Sport? STI?
For me, the SS wins, but I’d have to drive one for myself to know for sure.