Which 3rd gen modle is better?

TA
Z28
RS
I-roc

And there are a few more I cant remamber.
Which one is more areo dynamic , lightest , best looking .

 

well the birds tend to be a little heavier and hence a little slower
iroc-z's and Z28's are the same thing just different model years had different names. And RS is for the lower option.....the higher option cam with better springs, wheels as an option, sway bars i think and a couple other things that the RS didnt have.

 

go here http://www.thirdgen.org/newdesign/tech/techdb.shtml it has the name of every third gen and its power output numbers.