Gunna jump in and say i run two vargulfs and a gheist most of the time. There isnt all that much armor running around here unless I play my brettonian friend to really warrant two terrorgheists and the extra combat potential/ survivability of the vargulfs really grinds down units in comparison. (double charge being neccesary of course). Thanks to the smaller base they are also a bit more manouvrable and the vampiric rule has saved me a number of times when my general decides to
A- blow himself up or
B- Get his head chopped off or
C- catch a cannon ball
I do counteract the lack of a second terrorghiest a bit though by having a ghoul king on the terrorghiest with scabscrath, not the most competitive choice but there are too many targets in my list, cannons won't last past turn 2 and I don't really care if he dies as a necromancer'll pick up the slack and he has usually earned his points by that stage.