My 2 favorites are the older Spyderco 50/50 Delica and the A.G. Russell Lightweight One Hander.
Many of you own or have handled the Delica. The AG is the sleeper. Very thin, light weight, 2.875" AUS8 blade in a modified warncliffe shape.
Its has a very non threatening look and is surprisingly comfortable and fast opening for such a thin design.
I highly recommend it.