Tubus Logo has a very narrow top which makes it a bit stiffer, rated for 40 kg of weight. I use that for touring, great rack. The bars you hang your panniers on are a bit lower, that lowers your center of gravity a bit. For around home, I use a different rack with a wider platform on top, but I switch racks and use the Tubus Logo for touring.

My ortliebs are over a decade old, I do not know if they use the same hooks now or not. I put PVC tubing on the rack bars that the Ortlieb hooks hook onto, the tubing was 3/8 inch ID, 1/2 OD, held on with electrical tape. I did not use the Ortlieb inserts on the hooks, the tubing was the right size. You can see the PVC tubing I am talking about in the photo.

If you get black, black nail polish is a great touch up paint for when you get home.

Second and third photos shows that a narrow platform does not hurt with loading down a bike. Both photos are of the same rear rack and same rear panniers, but a lighter load was used in Florida on a lighter weight bike.