Renslay
Legend
While I would recommend you doing some other puzzle, you give choices so...
roux, because you only need to blockbuild, no EOLine
but then, blockbuilding in ZZ is much simpler, and EOLine should be easy after a few hundred solves
definitely a hard decision for me if I may only choose one :/
But also it is more restricted.
But I agree, though decision. ZZ is so much fun too!