What's your favourite season?
Autumn is a good time. However, for a wildlife photographer, it all happens on the coast (slight exaggeration). If you are a landscape photographer then its the best for the changing colour.
Summer has never been the favourite due to the fact that, in our part of the world, it is likely to be downpours rather than sultry. It is also the insect-rich time good for getting subjects but also getting bitten. Best time for mammal watching.
Spring is probably my favourite because there's a lot happening with new arrivals (migration or emergence). The days are not too long and there always interesting behaviours to observe.
Winter, however is the most photogenic; it is the easiest to take a picture that places itself in a season. That said, climate change is making that more difficult.