Thanks much for the welcome.
With that, I shall answer the last two topics, because they're both good questions. :D
What is your favorite Ghost-Type move and why?
Everyone loves Shadow Force, amirite? However, I'd have to say Nightmare, just because it's cool. The whole sleep attack thing was always cool to me. Ever since my first Gengar took out most of the Elite Four with Hypnosis/Dream Eater. Nightmare just adds so much to that coolness.
It has been shown in the games and the anime that Pokemon can die. Do you think this applies to Ghost Pokemon as well?
Well, we've always known Pokemon could die because of the tower in Lavender town. I always figured that since it's full of ghosts that dead pokemon become ghost types, but more recent ghost types, like Spiritomb, make that seem less likely. Besides that, there's the Marowak that comes back as a nonPokemon ghost. So, I'm starting to think that ghost type Pokemon are not ghosts themselves, but just ghost-like. Either that or they're the ghosts of humans, it would sort of explain their high intelligence, wouldn't it? Creepy but cool, I'd totally like to spend my afterlife as a Pokemon.
Maybe they could be more considered poltergeists, they certainly act like them. That being said... I don't think they could die, per se. Maybe dissipate or pass on or something, but not die in the mortal sense.