I like both as a kid I can get out of school early and hit it in the winter. I think it depends on how comfortable you are with your skill if your good and confident the crowds are not really bad because you can charge and get the waves you want to get
cold, dark, overhead short days with an empty line up are my favorites. No one in the water, on the beach or at their "summer" home. The solitary aspect of winter surfing allows me to get away from everything and think. No one is watching (still haven't figured out why i care), so my surfing is usually more creative and i try to pull more sh*t.
one dp a couple summers ago i was getting ready to paddle out with my buddy in Long Branch. As we started to paddle out these three frat boys on the beach behind us, starting hooting and cheering (the waves were waist high tops). I thought that the East Coast CI team just showed up with identical Channel Island boards. They were all loud and crazy and when they got out...they SUCKED. This is the kind of idoicy you don't get in the winter.