Used to always park at Radisson and ride the free shuttle. However, lately , it is difficult to get an early (before noon) shuttle. In that case I have driven from the Radisson to the Port, dropped the luggage and family, then drove back to the Radisson and parked, then waited on a space available basis for a single seat without luggage on the shuttle (usually not a problem).
Lately the Radisson is no longer inexpensive (A couple of years ago it was as low at $59, now usually $109). Now I stay at a Priceline or Hotwire hotel at the Airport (usually $30-$40) and park at the port. Even though the port parking is $70 / 7 nights, the total cost is the same. Actually the cost is less since I don't need to tip the porters or the Radisson Shuttle drivers.
Stress is less as there is no shuttle to wait on.