From Mars to Sirius was pretty horrible so I didn't even bother with The Way of All Flesh...I hate their annoying environmental pretense and the music was never anything special (just sounds like typical French modern metal, which, in my opinion, the newest Dagoba album is better at regardless). Gojira are just a lame band, and the incredible overhyping they get by lame magazines (*cough* Terrorizer *cough*) only furthers the annoyance. Just my two cents.
The new Slugathor album will crush skulls and bones. Circle of Death was the perfect old, morbid-style sophomore album they needed, it'll be great to hear how they sound on the new one; hopefully little has changed.