Yesterday in Platinum, I went to go catch Dialga and Palkia, got them both to Low Yellow HP and caught both with my first Poké Ball, I threw. Thank god, for their 30 catch rate. I also caught Giratina with a Poké Ball.
The legendaries I've caught are Zapdos, Moltres, Articuno, Mesprit, Azelf, Uxie, Regirock, Regice, Registeel, Regigigas, Heatran, Dialga, Palkia and Giratina in the wild. Only one I really have left that isn't an event is Cresselia.
I just got my Latias to Lv. 100 too. I'm liking Platinum WAY MORE than Diamond and Pearl. Also, thanks to every Pokémon having a Foreign Dex entry and the GTS letting you be specific, I have some Pokémon with a bunch of languages, prime example: Sceptile. English, German, French, Japanese.
I've had the game for 2 whole days, this being the third. I've already beaten most of it.