Are oceans a major factor in creating high winds on a planet?
The major factor is not the size or temperature of the ocean, it is the differential temperatures, and hence large scale convection, such as Hadley cells, Monsoons and tropical storms. With the latter, large oceans are relatively deep with thin warm water over vastly deeper cold water. The minimum temperature for as hurricane to form is about $27^\circ\!$C ($80^\circ\!$F), which most commonly develops over relatively shallow water, or where there is a massive influx of warm water such as the current El Niño.