My #1 favorite is Shin Megami Tensei. It's a series that started way back in the 80's as a novel, then years later they started making spin-offs like Persona. I would say its basically just like Pokemon, but instead you 'catch' demons, angels, gods, and whatnot.
My other favorite video games are:
-The Elder Scrolls (Like Skyrim and Oblivion. This series has lots of lore its really interesting to play)
-Pokemon
-Legend of Zelda
-Okami (I can't believe how underrated this game is.
Everyone needs to play this)
-NiGHTS
-Assassin's Creed
-Spore (I just wish this wasn't owned by EA.
)