Waymo crashes a lot more. From 2 years ago:
"In its first report on its autonomous vehicle operations in Phoenix, Arizona, Waymo said that it was involved in 18 crashes" (in 6.1 million miles).
For comparison, in the latest Tesla safety report:
"we recorded one crash for every 4.31 million miles driven", which is roughly what they had 2 years ago.
So Tesla is objectively safer. And Teslas are diven anywhere, whereas Waymo only drove in Phoenix, which is extremely sunny and dry.