Cynthia is difficult to beat without the use of powerful items like Leftovers, Choice Scarf, etc. In fact, in Platinum especially, Cynthia can easily take you down to your last Pokemon unless you:
Honestly, the first time I ran through her in Pearl I used my Lv.59 Swords Dancing Infernape to defeat her. I just needed to set up on Spiritomb and use an X Speed, ending with +6 Attack and +1 Speed. In Plat I just Kyogred everything lol
Unless Lance fixes his team somehow, my soon to be Red Gyarados can annihilate the whole team by DDing and Ice Fanging the dragons to death.
Lance is by far the biggest joke of a champion in G/S/C (how on earth did his Dragons get leveled down three years after RBY?), but he does have a nice theme (shared with Red).
I doubt there'll be special music for Ho-oh/Lugia, but I do hope Crystal's legendary beasts theme returns. 2nd gen does have the best music.
I do not want Sinnoh in this game. The idea of Hoenn alone (no wordplay intended) is already stretching it, and I doubt it'd be there.
"Strong Pokemon, weak Pokemon. That is just the selfish perception of people..." Yeah, good times...