>>24813064Well I guess the appeal varies from person to person.
For me, the appeal started with the porn, and developed backwards.
At first I started developing a personal preference for Gardevoir porn over other mons, which refined more and more into a specific attraction to Gardevoir.
After a while I started to find the canon design really cute and taking a liking to SFW art, and eventually that ended up in me becoming a waifufag for Gardevoir.
Or are you asking why Gardevoir is so popular in general? That's a bit easier to answer.
Gardevoir's design is very human-like and somewhat feminine, so lots of artists found it attractive and drew tons of porn of it.
It also means that it's an 'entry tier' design. People who might normally think masturbating to Pokemon is weird could still be attracted to it's human-like design.
Outside of porn though, it's design is also pretty cute, so quite a few people also draw SFW art of it too.
Couple that last fact with it's Dex entries describing it as a very loving and caring mon, it became a popular choice for a waifu.
And to top it all off, as you said, Gardevoir is pretty good at battling in the games, especially in Gen 6.
