I can write an essay about their personalities...their like this:
Red - Stubborn, determined, careless, quick-thinking, and caring (for his friends and Pokemon)
Green - Smart, Calm, Stubborn, Cold (a bit), Clever, and caring (for his family)
Blue - Sassy, witty, clever, sweet talker, takes over advantages
Yellow - Shy, innocent, happy-go-lucky, caring (for everything and everyone)
Gold - Stubborn, reckless, scatter brained, over confident
Silver - Cold, Hardened, Quiet, Mysterious
Crystal - Determined, confident, willing
That's their personalities...basically... XD