I like the vamp count, hoburg priest (incin+quick), blood pans or pandemaniacs(?) for hellbind or even later charm. I've tried the fairy queen with that helm that does charm + quickboots (flyer with boot slot), but her morale just sucks so I only got to try her once
I play a very random old faerun, so there are a whole bunch of big nasties around. Half the fun of my current game is trying to hellbind the big nasties, then have the big nasties survive the combat. Only the strong survive! And very few
Got a dracolich that way and 2 titans. I think I've wasted about 8 assassins trying to get the big demon lord that produces the militia. Going to try with a green eye+focus and see if it beats his MR. Not efficient at all, but fun fun.