I get what you are trying to do with the Scar Vet BSB, but I still feel it is likely best on the Slann. Less likely to be captured, and fly means...
Apotheosis is decent at lower points level games, where you are more likely to have foot characters. If stupidity wasn't so brutal, or cold...
If not doing TOW, 8th is fine, but amongst friends WAP can be cool. Just tons of opportunity for to branch out beyond the published factions...