2012: 205/50/15 Star Specs, purchased used for $50 to try out and replace the Kumho Ecsta ASTs that came with the car when I bought it. Loved them so much that...
2013: 185/60/14 Star Spec IIs, purchased new. I ran in the RTR class for 2013. Switching from a 7" to a 5.5" wide wheel meant that I can't give an apples to apples comparison on just the tires. These were definitely stickier than the Falken Azenis 615s on my dad's 91. I did, however, manage to burn off a lot of rubber on the fronts. After 1 season, I had about 5/8 left of the rear and 2-3 eights on the fronts. (Apparently I drift instead of autocross.)
2014: Sold the star specs to a local RTR (now E-street) competitor as I move up to STS. I recently purchased a set of 205/50/15 Rivals on 15x7 TRM C1s. I have yet to test them, but again, I can't give an apples to apples comparison because I also changed my springs.