For the longest time I used Organic Maps and it was fine but it was very very bare bones. I gave OsmAnd a shot again which I did not like before as I found it very confusing and holy shit I was wrong. OsmAnd is amazing and is customizable to the brim. I love it
There is no good, only "good for".
OsmAnd and Organic Maps are both tools to solve different problems in a different way. For some usecases and users, one will be better then the other.
But: OsmAnd also improved their UX a lot in the past few years, so that helps!