I was first introduced to meditation in the Soto Zen tradition, and the practice of just sitting without any meditation object. However this practice works best when the mind is relatively still and quiet, therefore breath meditation is often required. I find breath meditation quite difficult and only resort to it when necessary, ie with a restless mind!
I plan to go on a retreat with Steven & Martine Bachelor to investigate a Koan. hopefully this may become my main course !!!