It's quite easy to ask others what Type or Pokemon is their favourite, because these are easy question to answer.
However, this time, I am going to ask something a little different: What Egg Group is your favourite?
Alright, there are 15 different egg groups, but not everyone of them will be listed. The only ones listed are: Monster, Water 1, Water 2, Water 3, Bug, Flying, Ground, Fairy, Plant, Humanshape, Mineral, Indeterminate and Dragon. Remember that just because an Egg Group has the same name as a type, doesn't mean it contains only Pokemon of that type, like Dragon doesn't only contain Dragon-types, or Ground doesn't only contain only Ground-types. Only Plant, Flying and Water 2 contains only Grass-types, Flying-types and Water-types respectively, though. These are the descriptions given on Bulbapedia as of now:
For your information, the only Egg Groups that are left out are the "No Eggs" and "Ditto". The "No Eggs" is left out because it is very arbitrary compared to the others, as it contains bothe baby Pokemon and legendary Pokemon, so is justifiably left out. As for Ditto, he's left out because he's the only Pokemon in this group, and so it may not count as a Group.1. Monster group: Pokémon in this group are saurian/kaijū-like in appearance and nature.
2. Water 1 group: Pokémon in this group are amphibious in nature.
3. Bug group: Pokémon in this group are insectoid (bug-like) in appearance.
4. Flying group: Pokémon in this group are avian (bird-like) in appearance.
5. Ground group: The largest group, Pokémon here are terrestrial in nature.
6. Fairy group: Pokémon in this group are petite and considered very cute.
7. Plant group: Pokémon in this group are plant-like in appearance.
8. Humanshape group: Pokémon in this group are fully bipedal.
9. Water 3 group: Pokémon in this group resemble aquatic invertebrates.
10. Mineral group: Pokémon in this group are crystalline or silicon-based.
11. Indeterminate group: Pokémon in this group are amorphous, having no definite form.
12. Water 2 group: Pokémon in this group are piscine (fish-like) in appearance.
13. Dragon group: Pokémon in this group are draconic in appearance.
As for me, my favourite is the Indeterminate Egg Group, because they have a very interesting selection of Pokemon, from Ghosts to some blob-like and Pokemon that looks like inanimate objects. Oh, and Gardevoir being in this Egg Group is a plus.
I don't think there is a thread asking this, so if there is, will you direct me to it?