Okay /vp/, realisticly what would be your poképet?
Easy mode: grass as it can rely on photosynthesis to eat and psychic and as it's smart enough to care for itself
Normal mode: normal because average lads, water, fairy, bug, flying, fighting
Hard mode: rock, steel and ground would all have some obscure diet, fire because flames, poison because of health hazards, dark because edgy, ice because of appropriate room temps
Insanity:dragon as you get the full package of every risk
I myself would probably pick Meganium. Not only is this a favorite of mine but it would be easy to take care of and comfy to snuggle with. Meganium also has a plesant smell and could help with gardens, it would be super comfy