My favorites depend on my mood.
Generally, I really, really love floggers and cats. Especially my Heartwood collection. There's something about the actual physical sensation of flogging that is just awesome for me, feeling that gorgeous craftsmanship balanced in my hands, lifting it behind my back, crashing it down on a back or ass or thigh or breast...
But I like up-close sometimes. An OTK spanking is just so personal, you feel as well as see and hear the reaction to each stroke. Feeling the body squirm, feeling the cock or pussy drip, it's just so intimate. I have a pair of gauntlets with deerskin hands that a sub gave me for my birthday a few years ago. They make a spanking nicely thuddy and protect my hands so I can wail away longer without tearing up my hand.
For inner thighs, nothing beats a crop. You can really beat the heck out of this seriously sensitive area without needing to worry over crossing strokes like with a cane. Crops are so darned cheap too (especially if you get them at a tack shop) that you can own one for every sub, which lets you use that flapper bit on genitals without worrying how to clean them.
Not that I don't love canes too, but they require so much more precision and care in use. I can't "let myself go" as much with a cane. But I do especially love the *sound* of a rattan cane. And really, nothing feels like a cane - nothing. It's a one-of-a-kind sensation.
And then I have this silly little plastic flogger that's barely a foot long. A friend gave it to me cause I used to sit at her house and whack my leg with it over and over. It sits by my phone all the time cause it's sort of a "worry toy" for me and sometimes it even becomes a cat toy! But it also makes a *nasty* genital whip, that can be sterilized pretty easily. And the handle is small and smooth, easily covered with a condom to insert anally and make an instant "puppy" of a sub.