Police 3 is one of the best self defense oriented folders Spyderco has ever made, IMO.
Big and fast with a great lock, I really like it.
Ocelot is a very thin well built knife with unique paw prints.( I think down the road this one will be rather sought after as a collector) I have 3 of those and they just feel great in hand. The blade just seems to be right where you want it for cutting and as a skinner/utility knife it's hard to beat. (it's also discontinued)
The Captain, looks interesting but I've not bought one so I can't say much about it first hand.
I will add if the Ocelot you can buy has a gold bug on the blade, instead of the black and is plain edged I'd for sure snap it up.