Pro's of the TKC?!?!?!
Aghast, I am, at the very thought of such a question.
The TKC is one of my perpetual favorites.
In all seriousness though....not really many Pro's....just differences.
Single steel blade (not clad)
Not a true laser....but awfully close. Allows you to be less delicate with the edge
That's what comes to mind for differences.
I've never held or seen a AS Laser, though....so I can't comment on it's use.