@AtticRattata asks
my dad recognizes the old pokemon and I like newer ones. How do we build something together?
Jeff answers
I'd make a small shared theme, perhaps paired pages of each person's favorites or one Pokémon across different eras. Let each person explain their choices. You can learn from the differences instead of trying to agree on one best generation. Keep individual favorites separate if that makes ownership clearer.
— Jeff, infinitepulls.com