I haven't grown S.Axona for a few years but from memory to me, they are somewhat tastier than S. Mira. I'm not a fan of floury potatoes so sadly neither are particularly to my taste. I don't remember much about the yield difference they are both heavy producers, perhaps more big big tubers with S.Mira. From a Late Blight perspective, S.Mira in my experiences is the more robust and longer-lived variety.
Another variety that might be of interest at some point, although not as Late Blight resistant as either of the above (in my growing experiences) is Carolus, the yield is good and they have better flavour though still quite a floury potato.