The main difference between your two options Best Plan vs Best Plan / Better Cash is outpatient cover.
The second option means Best Plan with outpatient cover.
Best Plan is a plan with good hospital cover and limited outpatients.
Outpatient Cover
1. Better Cash is a cash plan which covers outpatient expenses ie. gp visits,dental,consultant visits etc. like the
Hospital Saturday Fund. One option is for an individual person, second option is for a family.