Which of these volcanic eruption types is the most violent?

I believe the answer is Plinian. 
A plinian eruption may produce thick, airfall, pumice deposits, or the eruption column may collapse to generate a pyroclastic flow. This type of eruption is named after Pliny the elder who died at Pompeii in AD79 during the eruption of Vesuvius that destroyed the city.

This is a time line from 685 to 978