Voted for

• Autumn

I would say spring, but it's usually colder and wetter than what autumn generally is around here, though it is nice to move out of winter and see everything grow.

Autumn can be an extension of summer, with warm, dry weather well into October. So, you can still do a lot of things outside if you so choose, with less air conditioning running on the inside. :)

The fact that there are different seasons is nice, though. I don't know how much I might miss them if the weather was always the same. I've heard some people do miss them quite a bit.