Which licensed killer should I buy?

I have Bubba, Neme and Lich so far, and 400 Auric cells to spend.

I like Nemesis the most so far, mainly with perks that give me aura info on the survivors and gen stall (BBQ, Lethal Pursuer, Pop/Eruption/Grim embrace).

Should I get Ghoul, Dracula, Xeno, or something entirely different?