I own both. Bought both of them used and set them up myself. The Kronos with a SME V12 and the AFO with the Graham Elite. Both arms are with the Clearaudio GF, the one on the AFO not yet broken in, so a real comparison is not possible.
All the same, I find it impossible to say which combination is " better ", because I like the sound of both. More of that later though. I heartlily dislike the use of words like better here, because what is the reference? Better according to what? I think, when we use that word or similar, some point of reference should be given.
That said, l find that in my rig, compared to the sound of the AFO, the Kronos sounds richer, more full bodied, more fleshed out. Often I find myself turning down the volume, when listening to the same piece, which was on the Techdas before, because the rendering of the Kronos seemed louder. As I had noted, the cart here is fully broken in. Stability of the Kronos is first class. Long drawn out notes or decays on violin or piano are absolutely stable.
(I am cursed with absolute pitch )
Same with the Techdas of course. The absence of spurious noise is uncanny. Tics and pops are somehow moved unto another plane, something the Kronos cannot do as well.
Listening to the AFO with material I know well, I find that the entire information is there, nothing missing to my ears, before a background of a silence, which lets me think of good digital. Sometimes I find the sound a tad dry, but then this cart has only few hours on its back. When I take the same LP over to the Kronos Ltd, I get the same information, no new mikrodetail added, I find, but the whole presentation as if painted with a bigger brush. The soudstage moves forward, but with the same fairly good definition as with the Techdas before.
From what I have described, one would expect, that the Kronos gives more bloom on instruments. Not so, here I find the AFO a little closer to when I listen to a real violin for example, perhaps because of this incredible silent background, which the Kronos cannot match.
I like both setups, find none " better ", simply very different.
With the one Music is beautifully rendered in say a hall with good reverb and you sit close to the music, with the other, you are placed a few rows more back snd the hall seems a tad dry. Wonder what the Techdas combo will sound like, when the cart is fully broken in.