Schwalbe Durano plus in 25's .... i have used several tyres, and these are by far the best when you commute ... roll well, grip well in dry and wet,last long and has schwalbes puncture rating of 6 (same as marathon plus)
+1
I use Durano S (slick) on the front and Durano Plus on the back. Admittedly, I use 23's but will probably switch out to 25's when these wear out...which they show no sign of doing yet. No punctures in over 2 years, not one, and very minimal wear. Competitively light, decent price and great longevity.
Schwalbe are the best tyres I've ever used. I will not switch to another brand.