I used LD20 and was quite happy. I tried some Rollei and was pleased with the first batch, since it produced prints very close to Fotospeed. The next batch of Rollei I bought did not behave well. I could not get the same color that I did from the Fotospeed or first batch of Rollei. Since Fotospeed was on its hiatus and unavailable I tried Moersch. Very similar results to Fotospeed/early Rollei, but more expensive. When I need to buy again I will probably go with Fotospeed for economy.
Note: I did buy the Moersch master kit but have not used the additives. Maybe just buying the A and B bottles would be comparable in price to Fotospeed. I don't know, I have not checked.