I'm currently sat on the fence of which shoes to buy for a French, big traddy sport type trip (Verdon, Aiglun etc.).
Something decent. You can't get away with shit shoes like you can on granite. I'd get some whites greens or velcros a bit bigger than you wear for sport climbing. I'd accept some misery at the end of the day over comfy but shit.
Interesting you should say that. I bought some "comfy" shoes for multipitch granite in France last summer; they seemed to work ok for that but otherwise I found them clumpy and insensitive, never really liked or trusted them. This summer I had ambitious alpine limestone plans, and had pretty much decided against comfy but crap and in favour of Miura Laces that were old and knackered enough to be wearable for a few pitches, but I trusted them. (Then it rained)