I don't think Dracul is so bad on a rogue. It's better to convert in, and the prep penalty hurts, but lifesteal on a rogue is a fun way to get around your low max health. Of course today I picked dracul to go for low xp, after I'd messed around in Earthmother for a while. She does make killing Aequetas even easier. You have to be careful not to get trapped though:
That was after ONE use of entanglement, mind you.
Of course things were fine after I realized I had enough piety left for clearance.