How far is pick up from property of CI?
How long is the BCC ride? LCC ride? Do you change buses?
How often are the shuttles going and leaving?
Looks like you can pay per ride but must have exact change?
I've never taken the Utah ski bus, so I can't give you details there. But one thing nice about the "CI" is that they have a free shuttle that'll take you anywhere in a mile or so radius. As part of that, I believe they'll take you to the nearest park and ride.
Can't get the details about the SLC Ski Bus until later in the fall. But this has the map and rates. Note that if you get a SuperPass, you get a bus pass as well. As I remember, buses are every 20-30 min in the mornings and late afternoons. Never used it since either drive or stay in Alta.
In general, the drive from Midvale to BCC or LCC is 20-30 min with no traffic or snow delays. Obviously the bus will take a little longer. However on road closure days, the bus gets to go to the head of the line.