All of them.
I have never met a spanking implement I haven't liked and I have met at least 20 different implements.
Each one feels a little different and I like the variety.
Sometimes my wife and I play "Name that implement!" I select about five implements from our collection of 15 implements (we have used other implements like rulers, but not any more because our real spanking implements are so much better).
Then my wife gives a whack with one of the implements and I try to guess what it is. It's harder than you think. It's even more difficult if she selects the implements and I don't see them at all because then I am picking from 15 and not five that I looked at just before the game starts.
By the way, if I win the game, then I have wild, crazy sex with my wife. If my wife wins the game, then she has wild, crazy sex with me.
Actually, I do have my favorites, but they change depending on my mood. Today, I wanted the hard plastic "waffle" shaped paddle and the wooden strainer spoon. I don't know why. I just felt like they would feel good this morning . . . and they did!
Sometimes, I choose the soft, floppy leather paddle because it wraps around and smacks both cheeks and hits all the skin at once. A wooden paddle is great, but when it hits the butt cheeks, it first makes contact with the top of the cheeks and then compresses the cheek until finally the maximum amount of the cheek is touched by the wooden paddle. The floppy leather paddle kisses all of the skin at once, immediately.
Sometimes, I like the Delin cane, but most of the time, but my wife has to go lightly, especially at first. My wife has to take it easy, especially because she can't control the cane when she swings really hard. It's not fun to get hit by an errant Delrin cane strike up near the kidneys or down on the thighs where the skin is extremely sensitive.
Happy spanking!