Tires...Which Perform The Best/Last The Longest?

I have a pair of Michelin Pro2's that I have been riding for over 1700 miles now and is now just under two years old.  I have had one pinch flat with them.   They are starting to get a flat spot on the tread itself, but still have not found any cuts.  In my experiences with these, I've ridden through sand, gravel, chip-seal and some pretty harsh winter salts .. but they've held up just fine for me.   I've ridden these through four season weather, three sprints, two olympics, one ironman, four century rides .. you get the idea on the versatility of these tires.  

 Very high respect for these tires and supposedly the Pro3's are a notch better.  Who knows?  I'm sticking with the tried and true for my next set.  

I use Bontrager Hard Case tires for training.  Not the fastest but absolutely bullet proof.  I've done nearly 6000 miles on them this year (new at start of the year) and they're still going strong and I've never had a puncture using them.

I even did a little off road riding (~10 miles) with them and they were fine.

They're also almost completely unaffected when using them on the trainer.