From last I read PKR was a better choice if you have the time for it to heal because it removes far less material and doesn't form a flap which is a physical weak point that hard physical activity or a poke in the eye can dislodge.

But with PKR you also have wait like up to a month before vision is clear again, versus lasik giving mostly clear vision within like a day or so. So with PKR long term it is less physically vulnerable but it puts your vision out of commission for a week or two atleast.