Do yourself a favor and get out to Mammoth some time. I loved it there. Of course, had great luck with snow, but I loved it. Great Mountain, great facilities.
I've heard great things about Mammoth. However, after my experience of going a few years back to Tahoe with no snow on the 8th and final year of an 8-year drought, I've turned a bit sour to planning another Eastern California trip. Again, sounds like awesome skiing, but I'm not sure I'm willing to roll that dice again anytime super soon. Maybe though.