Interesting.....
Gen1,Squirtle
Gen2,Cyndaquel
Gen3,Treecko
Gen4,Chimchar
Gen5,Oshawott
Gen6,Chespin
I never nicknamed pokemon in the game, but I did in my mind,
Whenever I found a shiny like It was In early game with no pokeball or late game with just not enough pokebals to catch it.
I would always have the pokemons next gen on my team like pidgey,tailow,starly or houndoom,luxray
I would never use pikachu on mah team except for pokemon yellow but that's yellow
In pokemon crystal on the gba I taught that poliwhirl would evolve when lvl 100 while I had a water stone in the inventory,I never used it+deleted the snorlax on my brothers run I was young
I never used stats enhancing/lowering moves like dragon dance, growl (before reborn) because I wanted the extra hit/faster kill