Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Oh, that's a tough choice. Perish Song is pretty amazing considering you more or less win automatically if you take down 3 Pokémon. You'd think they'd put Friend Guard on more Pokémon, or at least one fully evolved one.
I know what Jigglypuff was doing lol. But since it's just using its ability, really all it's doing is indeed protecting itself from dying so it can continue to do so and then Perish Song, right?
I still had a Politoed actually haha.
I tried to kill Jigglypuff right away, but there were few opportunities for me to do anything to it (especially considering the Pokémon I brought); you protect it well.
EDIT:
In fact, I could've switched Ambipom out for Politoed, and if Jynx could kill...