What time and day of the week is this? Some of the stops are just literally just on the curb and no checked luggage service. If this is winter with possible rain or you need to check in luggage, go to the Transbay Terminal station.
How far could you walk to the stop, or would you take a taxi? If you'd take a taxi regardless, I guess I'd pick the Transbay Temporary Terminal. If you'd walk, I'd check distances on Google Maps, but Pier 39 would be less than a mile, and relatively downhill.
Edited to add Chinita's got a good point about the weather...Edited: 31 December 2017, 07:51
Have you looked at flights? You can fly to one of the several SoCal airports for $60-$80, Hour flight.
I couldn’t imagine sitting on a greyhound for probably 3 hours longer than the drive should take because of all the stops along the way.
Thanks for the tips! Actually I’m catching the bus to the starlight train - love trains so will be enjoying the journey.
This is 730am-ish on a weekday (Tuesday). I plan on catching an uber or taxi.