I'd like to start the gym in a desert town, then more people will start to come as your gym grown and become more and more famous
"Laws and principles are not for the times when there is no temptation: they are for such moments as this, when body and soul rise in mutiny against their rigour; stringent are they; inviolate they shall be. If at my individual convenience I might break them, what would be their worth??" - Charlotte Brontë ; Jane Eyre
OK, now for Abilities
Trap Dodger: Not hurt by entry hazards.
Survivalist: Takes normal damage from SE attacks.
Sweet dreams: Sleeping pokemon heal hp
Sticky surface: Decrease foes speed on entry.
Smart enough to use forth in the wrong context
Claims: Metagross and Travis Touchdown
Personally, I kind of like the idea of running your own gym, but I like the idea of becoming the champion after you beat the current champion better. I mean, that's how it works in the anime (Buck challenged Cynthia in the anime to become the new Sinnoh champion), and it's even implied in the game. After defeating the champion in any of the games, they call you the new champion. So doesn't that mean that you should take their place?
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Cynthia once had it all: powerful pokémon, fame and hordes of adoring fans. But Ho-oh's campaign tears her life asunder. Now to survive this deadly new world, she must do the one thing that she never wanted: kill. Follow her trials through a world at war in Poké Wars: Downfall of a Champion
I'd like to have a cake Pokemon since the Vanillite line is so awesome.
The moon doesn't shine
I'd settle for in battle status conditions using gender pronouns. I mean, my parasect is a male, I want to see "He hurt himself in his confusion" not "It hurt itself in it's confusion".
Hey, how about an option to play as the player character OR the rival?
I'll take HGSS for instance. Or GSC. Whichever.
You can choose Ethan and go the normal route which we all know yadda yadda yadda...and win the league, become champion, end of story.
BUT!! You can choose as the RIVAL and play a different story. You start from whatever home you had and travel to New Bark Town (this will be done by the computer as an introduction). Instead of getting a pokemon from Elm, you actually look through the lab window from outside. You choose what pokemon you want, and then there's this animation where you STEAL the pokemon. Of course, Ethan would've already chosen a pokemon, but let's say you don't know what. When you meet Ethan near Cherrygrove, he has a pokemon with the type advantage (or disadvantage. Whichever)
They would need to have two separate save files then!
Instead of the idea of the main character getting a starter Pokemon, how about you (the rival) would get to choose between starter Pokemon, but let the main character have one of three normal Pokemon instead for the sake of not causing paradoxes?