Well, keep in mind, at the end of the day, it's situational.
I looked for the sweet spot for me. Did my homework on this site (HUGE help), compared all features and options off the Camaro site and of course my own limited budget considerations ... cost and payments.
Utimately, I went with the 2LT/RS, plus added a few other options; Automatic, Stripes, Spare, Car Cover, Engine Cover (wansn't much left).

I am a commter so mileage was a big consideration too.
I read on this site that the Camaro 304hp V6 compared to the Mustag GT's 315hp V8. I also heard that Direct Injection mde a big difference in performance.
So again, for me it's the best of both worlds. All the goodies and impressive performance as well.
I won't lie though ... If I could afford the 2SS/RS with all the options, the payments and gas ... I'd do it ... Who doesn't want it all?
Wait, now with the Z28's coming we all want that 550 instead of the SS, right!
Bottom line, it's your decision to make that best fits your situation ... Most don't get to do this everyday, make it thoughtfully, no regrets and Do what I plan to do ... Enjoy the Ride!!!
Good Luck ... Since you ask, I'll be interested in what you deciding and why.