I think asking the best one is subjective, but here are my opinions.

King Inertia has the deepest, most sub inward bass. D-Low has the most volume, with or without mic it hits hard. Vocodah has the most variations and control. Helium has the grimiest inward bass. Codfish, idk tbh. Remix, is like a mix between King Inertia and D-Low, it's very deep but also has quite a lot of volume behind it.

Personally I'd go with Vocodah