Silly discussion, ask any car enthusiast (not an xfire owner) which look they prefer and it's going to be 100% SRT wheels, spoiler, bumper, seats. I got numerous comments on my car in person saying that the rear of the car looks much sharper thanks to the wing, plus it is functional at high speeds where as NA tiny wing not so much.
Coming from a SRT owner...

credibility is questionablel
Its not who has the bigger wing but how it is used

They both do the job
Both has their faults, srt wings crack, limited may get a faulty motor...
All depends if you like a smooth rear end or one you can have dinner on
SRT6/special edition base rims are liked on this forum and are overly praised.
Not stirring the pot but we all know its true