My motto is use your brains, if there is not much traffic (e.g around 2-3 aircraft) use the basic calls 5nm inbound, overhead, downwind and final.
If there is a lot of traffic in the circuit use your brains and use the calls that you feel safe by such as inbound, overhead, joining circuit, downwind, base and final.
But just don't dribble rubbish that doesen't need to be said as it could cause radio congestion and you may miss inbound or collision avoidance calls.