<< DUNGEON OF HARROW, THE THREE STOOGES IN ORBIT and SHRIEK OF THE MUTILATED fall into this inexplicable category, too. >>

YES! DUNGEON OF HARROW is the definitive "inexplicable fondness" for me. I have already raved ad nauseum about it so I will not further bore here.

Oh, and I might add to the list, THE ASTOUNDING SHE MONSTER and FIVE MINUTES TO LOVE (with Rue McClanahan).
"No! You stay here. Look out for more zombies..."