What type of Golf Balls do you use?

In normal summer conditions, what type of golf balls would people generally use? I appreciate if you play a lot of golf, you may mix things up a bit, so only really speaking what you general tendency would be on your bigger rounds (say club comps or a golf break at nice courses).

For example, in the winter or the many social rounds of golf I play, I may well use some of the golf balls I find around the course. But generally, especially in comps, I use Callaway Chrome Softs and so I'll select this option in the poll.