I skied Taos, Wolf Creek and Beaver Creek this past week. Taos and WC definitely had spring conditions going on...it was warm, snow was pretty soft. Those aren't necessarily my favorite mountains to begin with, but skiing was "ok." I personally wouldn't go back this spring unless they get new snow.
The day I skied BC, they had gotten 5 fresh inches the night before, so that was really nice. There were only a few runs that I noticed mashed potato-like snow. Had they not gotten the fresh inches, it might have been just "ok" like the others (minus being at BC and the awesome resort that it is!).
Last year I skied Keystone the first week of April and it was awesome. We even got fresh snow while we were up there and the crowds were very light. But this winter has been so different than last winter!