I hate the changing. I'd take either one, but if I could pick, I'd pick standard time year round.
I heard a podcast a while ago about two towns in Texas. One town was on the eastern edge of the time zone, and the other on the western edge. So in the western town, the sun would set a bit later. They found that the economic output of the eastern town was better than the other (they took all other variables into account. These were two otherwise equal towns).
What they found is that in the western town at say 7 pm, it was still light out, so people ended up staying up later, meaning they were groggier in the morning, and it affected their production.
Eastern town people went to bed earlier since it got dark earlier, and they woke up brighter and fresher.
So if this story is any indication, we should all just switch to standard time and stay that way.