I have a variety. Most of them are Couch vegan straps, as they tend to be bought for me by my (vegan) wife, they tend to match the bass that I have them on. I also have one of the really wide couch straps on the 5005 as it is so heavy.
One is a denali strap, which I got as it was the only thing I could get to match my shuker
I have a couple of leather straps, but they tend to be on things I don't really care that much about, as they don't match (they are brown or black and I have fewer of those now)
I have a Comfort strapp somewhere, comfortable but ugly and I never really got on with it
Oh I also have a really wide maruszczyk strap, which came with my maruszczyk, which is a bit pointless as that chambered swamp ash!