Plattekill is great, but as you noted, I'd rather wait for them to get some snow before heading up. It has the only real tree-skiing in the Catskills. If it's going to be an on-piste day, I'd rather go to Bobcat. Sounds like we had similar conditions.
I had a nice day at Elk last year, and wrote a quick piece on it:
http://www.snowjournal.com/page.php?cid=doc791