Sierra at Tahoe - midweek is your best bet at South Lake Tahoe.
Cheaper, nice bunny slope, less crowded. Stay away from Heavenly on
weekends - very crowded. Sometimes there is no parking.
Sierra-at-Tahoe runs shuttles from many places in SLT, especially from
the casinos. Heavenly is great mid-week when you are a more advanced
skier. I particularly like the Nevada side.