Gothic 2 NOTR>Gothic 1>Elex=Risen>Risen 3>Gothic 3>Risen 2
But I enjoyed all of them. Elex looked horrible from preview videos so it pleasantly surprised me. Some cool quest design there, world is still nice to explore and they even took some care with the ending (in Risen 2/3 endings were terrible).
I am pretty sure this must be possible somehow, but not sure how since I haven’t played far enough to have multiple breads :)