Sorry, I can't give you any opinions that aren't from my own experience with those tires you mentioned. I had a set of Dunlop SP Sport W10s before and those were not bad. They were also a "budget" minded tire and their dry traction was OK (read, not nearly as good as the Kumhos) but they had decent wet traction (Kumhos have been very good in the wet as well IMO). I seriously think you're paying way overboard for Pilot Sports. The other two you mentioned don't come cheap either. Either way, the miniscule gain (if any) you're going to get by paying so much more per tire really isn't worth it. I'm sure there are advantages to a Michelin Pilot Sport seeing that it costs almost 3 times more than a Kumho Ecsta Supra712 but does it perform THAT much better measurably? But that's just me, some like expensive wine while others just want something that tastes good but at a reasonable price. A summer tire just doesn't last that long to warrant spending that much more IMO - I'll stick with my budget minded ultra high performance tires and be happy.