Got three Recons and one AK47 (Aluminium handle). Both are fine and the lockup is good.
I like the Recon cause the shape is simpler than the AK and does not catch onto my clothing in my pockets. The new 3rd generation Recons (G10 with Aus 8a 'premium' steel) is better than the 2nd generation (Zytel with 440A) but the 1st generation from Japan (zytel with Aus 8a) is not too bad. I concluded that the combo edge is my prefered choice cause there are times I need to rip through thick cardboard and the serrations help.
Keep in mind the fine serrations on CS' folders are rather fragile and will damage easier than coarser serrations (like my emerson hardwear).
The AK47 has a good weight, I like a moderately heavy folder. The knife is bit short in this case made more apparent by the large handle. If you have large palms it'll be great but I'm asian so it's bordering on too-large.
PS: The 'wave' feature on the AK47 is pretty nifty. Not too small so it rips and can even serve as a thumb rest or whatchamacallit.
I recommend the Aus 8a steel choice (3rd generation Recons and any AK47s).
Note that the 'Ultra-Lock' (Axis wannabe) is a bit hit and miss here. The newer models have smoother locks which can be unlocked with one finger but the older models tend to be stuck due to the honestly crappy design and dimensional tolerances.
I recommend the Recon with combo edge (Spear point) cause I can't decide between tanto (great for punching/stabbing ... cardboard) vs. clip (not too good punching but great cutting) so I go for a bit of all!