Kinda silly to choose, they are such drastically different games lol. But hey, I'll play....
As someone who almost exclusively played Dark Souls games & Bloodborne for years prior to ER (It's all that is on my PS4 and has been for a LONG time lol), ER is everything I wanted it to be and beyond. Still playing, still loving it, and like I said in the first line of this post, such a drastically different game, but if I have to pick one I will choose ER.
The variety in enemies, bosses, environments and the ungodly amount of playstyles you can use and be successful is mindblowing at times.
There is so much to unpack and every day I discover new stuff. While I altered back and forth between the Souls games and BB over the years, I think I will be exclusively in ER through this year and well into the next.
Also, "cheeseing" things in this game (or any Souls game) is robbing yourself of the joys of a successful win against a tough enemy. Personal opinion of course ;)