I'm a switch. I enjoy almost everything. Whips are probably my favorite right now. We have several. Mostly, I just crack them when I'm dominating. My wife doesn't like much pain. I like a good bit of pain, and my wife has learned to enjoy inflicting it on me. Maybe too much!
I personally love/hate crops. Floggers are so dependent for me on how heavy they are, how thick the falls are, how many falls there are, and how it's being used. They can hurt, but they can also be nice.