Same can be said for Pharoahe Monch or Fizzy Womack aka Lil' Fame
They're both fire...but better than RZA?
Yeah, he fell off, but he produced 3 albums that not only are classic but are some of the greatest albums in hip-hop and maybe all of music history. Then fully produced another 3 albums that range from 4.5 to 4 mics. And then capped it off on Forever by doing at least a dozen beats on there, some which are his best.
RZA directly influenced a generation of producers. Kanye West, Just Blaze, and Alchemist (to name just a few) have all cited RZA as a massive influence.
he fell off but his body of work in his prime is so influential and so bulletproof that I think you can't compare random loosies that Deck produced that even though they're good, can't compare. Deck also never fully produced any album that I'm aware of, and you can't be better than RZA if you've never produced a full album.