Originally Posted by
UltraSound
I think it's fun when I can beat a pokémon that's considered stronger than what I'm using, and I'm beating it only because my pokémon had a better training. It gives me the feeling that I worked hard with my pokémon to be able to do that, I didn't beat them just because my pokémon has better base stats than the one I'm battling. If they got rid of IV's, I don't think moves would really matter, the only thing that'd ultimately decide who wins are the base stats of the teams. The only thing that'd matter is what pokémon you have with you.
For me the purpose is fun. It's a nice feeling when you finally get that pokémon with good stats and can begin training it. I think the IV and EV system teaches that you have to work to get what you want.
While there's a lot of moves and new ones still being added through every game, I think people would just get stuck with certain item-ability-moveset combinations, and it's fairly common already. With IV's and EV's you can decide yourself if your pokémon is defensive or offensive type, or maybe both or something else. You're not stuck with what the game developers decided, you can break the rules.
I don't think at all if would limit battling to the Pokemon in your team as the winner or the base stat. I hate to bring this up, but, if you recall the VGC match of Se Jun who used a Pachirisu to wreck teams, Pachirisu is not at all a contender to top base stat Pokemon, but it was able to handle moves from a Mega Tyranitar and a Salamence, at the same time, and with assistance from Pokemon like Rotom-G and Garchomp, it won the match. This doesn't make Pachirisu a strong Pokemon, but it's the point that stats aren't always the focus of a match. Moves would be all the more important, so example, Pachi using Electric Terrain and Follow Me so that all moves not only were forced to hit it, but they were turned into Electric moves, which only healed it because of it's Volt Absorb Ability. On this site alone I've seen weaker Pokemon outsmart more powerful foes, and there's always stat altering moves like Swords Dance and Quiver Dance and Cosmic Power majorly assist. You do bring up you can control what stats you increase thanks to IV and EV training, which is a great point, but it isn't entirely up to you, like things like a Special A Machamp or a Speedy Slowbro will never happen, so it's still ultimately the designers who make the rules.