I feel Karador strikes the best balance between the utility and cost of reanimation in this space, as Kethis pushes you heavily toward a legendary theme, and Nethrois ability both costs a lot and truly thrives when you can bring back a zillion cheap creatures
Say I attack with my [c]Efreet Flamepainter[/c]
If you jump through too many hoops and spend too much time and mana putting a creature that gets answered onto the battlefield, then its pretty obvious that you would have been better off just casting spells that impact the battlefield from your hand
The best payoffs are ones that put counters on themselves (like Tellah, Great Sage and The Emperor of Palamecia) for casting expensive noncreature spells to make them bigger combat threats
This list is primarily aimed at Commander players who need a hand sheltering their cards from their opponents
When you do, your foe will draw a card to replace it, so this is less of a feel-bad than Mindslaver