There's a time and a place for both really. Depending on the people's moods and their relationship / understanding of one another, the type of tickling could easily involve both in a single session, as opposed to being predominantly one or the other.
Me? As a switch I love to give and recieve both. Aye, I be greedy I know
I don't think I could ever be happy with just one or the other. CD said it perfectly. It depends on the mood and the relationship between the people, and one session can start as one and move toward the other and back again as many times as you want. I think those are the best sessions in the world.