You sure?
On my first Lunatic run (Classic, of course) and dark magic has been just about the only thing keeping me in the running - not to mention the outrageous bulk a sorcerer has
(Unless you mean strictly postgame, where I'd imagine sorcerers probably do fall off - the speed/skill caps probably hurt..)
Anyways, we can probably agree that Taguel is always useless.
In Normal and Hard, Tricksters, Assassins, and Swordmasters all make fun dodgetanks, but it's tough to squeeze any use out of them in Lunatic, so I don't know how we fit that into the list.
I'm seeing a lot of general hate for General, but I'd think that they'd be good in postgame once you have a couple skills on them? Things like Aegis and Sol?
I want to say that Berserker is also a good postgame class because (tied for) highest offensive cap in the game therefore awesome dualstriker without having to lose out on SPD but again, I'm not familiar enough with the Meta to say for sure
No matter what, it seems like between the difficulty distinctions, the ingame/postgame distinction, and strategy dependences, it's going to be incredibly difficult to fit the classes into a single tier list :/
(first post on the forum please dont hurt me)