My 806D2 has been my most frequently carried knife for the last 4 years. I'm not a fan of Benchmade much these days, but the AFCK and TSEK, to me, were instant classics, much like the highly revered 940 and 710; I really am stunned that they were discontinued. I wish BM would re-release at least the AFCK, but return the oval hole and drop the limited edition silliness and price. Wonderful knife. It's got one of the most comfortable grips I've ever experienced, and the blade shape and steel have performed perfectly for me.
I would vote for the Police 3 in terms of roughly-similar length and ergonomics, however the AFCK still gets the edge for ease and speed of opening, as the AXIS lock is much easier to open in numerous ways, and very fast. The Police can be quick to open, but overcoming the lockback spring upon opening means you have to be just a bit more deliberate. Depending on how you open your knife, that might be your preference.