There's a time and place for fatter tires (28cm and above for me) and that's no doubt. Several miles on chipseal road with high pressure skinnies, or commuting on urban blight streets, will testify to that. But I've found a new angle.
I always liked my sport-touring Rivendell Romulus but thought it a bit "dull"....not "quick" or "exciting"--- more of a road touring sedan than a turn-on-a-thought sports car. 28cm's seemed appropriate tires, like an older man wearing a fuzzy cardigan sweater instead of a t-shirt. Then I put on a pair of 25's (but probably on the narrow side given manufacturer's inaccuracy in labeling tire sizes). The bike feels different...lighter, quicker. And, yes, I know there is less rotating weight and higher pressure.......not to mention my own hopeful expectations. But I'm very pleased.
Anyway, I'm enjoying the bike more now for those 30-40 mile rides up into the hills on reasonable pavement. For crossing the potholed junkyard they call pavement downtown, I'll stick to squishy, belted Paselas.