Average time from stepping off the jetway into the terminal to stepping off the bus at one's resort is seventy to ninety minutes. Assumes minimal stops inside airport.
Pop is usually, but not always, the first stop on its route. There are no 'set' routes, dispatching is based on need.
The ride from the airport to Pop is about 30-35 minutes.
Actual resort check-in time depends how many people are in front of you in line.