In reply to stevefroud:
I've been in Skye at Easter and had a week of 22 degrees with unbroken blue sky. I've also been in summer when it's pissed it down for a fortnight. Similarly, I've been in the Alps most Easters for the last ten years, and had everything from beautiful sunny rock climbing in T shirts weather to full-on blizzards. Last year in the Ecrins, the road from Vallouise to Ailefroid was still metres deep in snow well into May. You certainly wouldn't have been able to access any of the huts without either skis or snowshoes.
In short, my advice would be to go to the Alps with an open mind (and wallet) - rock climbing if it's nice, skiing if it's snowy.
JW