Black Gravios is a very mixed bag for me. His design is great, especially his armor and his weapons, specifically the SnS. That's kinda where the positives end for me. His fight in 4th gen isn't as bad as it was in 2nd gen, but it feels like most of the fight is just waiting around for him to stop fire farting and roaring. Hated him in 2nd gen, dislike him in 4U, and very glad he didn't return in X.