I like Pearl drum keys. They just feel good in my hand. Ludwig makes a key with a triangular handle. I don't like that too much.
Hey! That's mine! I left it in that locker! The locker was tan, right? Why you....This is mine (or a picture of a similar one to mine, anyways). My trusty Ludwig Sta-Set 4-way key. I found this in an old locker at a rehearsal hall in 1991 where the house drumsets were 70's/80's vintage Ludwigs with the Modular tom mounts and hardware. Sure is handy to have that wingnut grabber to help tighten or loosen things. I've managed to not lose this thing for 20 years now.