Have you tried the Vittoria Corsa G+ tires? (Now there's a G 2.0 I haven't tried yet.) I've moved to the 28c G+ on my good bikes that will fit them. Haven't ridden the 25c yet simply because I have so many older Corsa and Open Paves that size I need to wear out first.
Those tires are very comfortable tires. Expensive, yes. I doubt they last like the Continentals and probably flat more often. I don't ride Continentals simply because they have a ride I don't like (and the ones I've ridden had grip I didn't trust).
Ben