We've had a cockerel for some years, the meat is tasty as it is slow grown and free range. The ones we buy are from Ocado though I know that others sell them. This year's bird weighed about 5.5kg, and I cooked it at a lower temperature than suggested, upside down for the last half of the time to keep the breast as moist as possible.
My husband likes dry breast meat so I often cook a small turkey crown which can be sliced up for him, but the rest of the family prefer the cockerel.
We did have goose in the past but there is relatively little meat on a huge carcase, it works out very expensive for what is basically just one meal for our family.