I'm looking for tire recommendations for use on gravel paths as well as roads. Currently we are using Conti Ultra Gatorskins (700x28) but would like something a little wider and more durable. There are a few rail-to-trails and similar routes that we'd like to try. The new tires would be used only for when we plan to go off the beaten path. Otherwise, we'll keep the Gatorskins on.
I have Schwalbe Marathon Plus' on my commuter and they are high on my list. But I'd be happy to hear what others recommend. Probably looking for something in the 700x32 range.