I like humans too. They looks more realistic and no weird colouring of the skin.
It's just that when you have a very big family, namely 7 or 8 member, the mess they made are quite a lot and having a lazy maid really didn't help. those genies could clean the rooms in one flick and they could banish unwanted sim ex:zombie, paparazi.
Witch take longer time to level up especially if you play multi sim and not controlling the witch to use their power.
Fairy is... well, a fabulous gardener. After they get the bloom of course. Imagine how many time you could re-bloom and re-harvest money tree? LOL
is this count as cheating?