What makes a Pokemon fun to use in-game? Well, liking said Pokemon. I personally prefer cute and beautiful Pokemon (Bayleef, Vaporeon, Togetic) over tough-looking ones (Tyranitar, Machamp, Houndoom) and prefer animal-like ones over inanimate object-like ones. Everyone has their own preferences. In-game, I don't really care if a Pokemon is unviable competitively. I enjoy using Bayleef or Ledian in-game.
Often, I have a fondness for a certain Pokemon because of the anime, which I grew up with in the good old Kanto and Johto days. Ash's Chikorita/Bayleef is the main reason why Bayleef is my favourite Pokemon. But I also have fondness for Pokemon because of TCG cards and figurines I got as a child. For example, I bought these Mantine and Misdreavus figurines as a kid, and then used them in Pokemon Colosseum a few years later, cementing my fondness for these Pokemon forever. And the Pokemon 4ever movie had a huge impact on me loving Suicune and Celebi.
Other nostalgia? The Pokemon Play It CD-rom game I played as a child, with the Seaking TCG card causing me to like Seaking a lot.
My competitive knowledge... Well, in-game, I just use that to my advantage when it comes to movesets, EV training etc., and try to make Pokemon I like shine as well as I can, whether they are strong competitively or not.
Back when I played competitively in Gen 3 and 4, competitive use of a Pokemon was more important to me, of course. I wasn't going to use a Ledian in Ubers or anything like that. I did once use Seaking on a Gen 4 UU Rain Dance team as a joke, but that was just once. It didn't even do that badly, but of course I used that as a joke, because of the Seaking Fuck Yeah meme.
In 'competitive' in-game enviroments, like the Battle Frontier in Gen 3 and 4, and the Orre Colosseum in XD Gale of Darkness... I tend to use Pokemon I like, that are good in such enviroments, like Latias and Suicune.
Often, I have a fondness for a certain Pokemon because of the anime, which I grew up with in the good old Kanto and Johto days. Ash's Chikorita/Bayleef is the main reason why Bayleef is my favourite Pokemon. But I also have fondness for Pokemon because of TCG cards and figurines I got as a child. For example, I bought these Mantine and Misdreavus figurines as a kid, and then used them in Pokemon Colosseum a few years later, cementing my fondness for these Pokemon forever. And the Pokemon 4ever movie had a huge impact on me loving Suicune and Celebi.
Other nostalgia? The Pokemon Play It CD-rom game I played as a child, with the Seaking TCG card causing me to like Seaking a lot.
My competitive knowledge... Well, in-game, I just use that to my advantage when it comes to movesets, EV training etc., and try to make Pokemon I like shine as well as I can, whether they are strong competitively or not.
Back when I played competitively in Gen 3 and 4, competitive use of a Pokemon was more important to me, of course. I wasn't going to use a Ledian in Ubers or anything like that. I did once use Seaking on a Gen 4 UU Rain Dance team as a joke, but that was just once. It didn't even do that badly, but of course I used that as a joke, because of the Seaking Fuck Yeah meme.
In 'competitive' in-game enviroments, like the Battle Frontier in Gen 3 and 4, and the Orre Colosseum in XD Gale of Darkness... I tend to use Pokemon I like, that are good in such enviroments, like Latias and Suicune.