Ah, and my trust in people worked out for the better once. I'm second pick and ask for jungle, then our last guy is like "yo penguin can i have jungle please? i'm a pretty good voli" and I give it to him since he asked nicely instead of threatening to feed or bragging about his plat alt.
So I support, and grab Janna since the enemy team took Taric before he could. He carried hard, and gave me honor at the end for trading him the jungle. That game was pretty great in every way.
And I finally figured out why I got sorted into Lux's Spellbreakers instead of any of my friends' silver leagues: these two guys I never play with are in there. It seems the league system doesn't prioritize your friends at all.
My friends' leagues, mostly out of my curiosity (numbers are the amount of friends in each):
Diamond: Malzahar's Captains (1)
Gold: Kassadin's Wizards (1), Poppy's Swashbucklers (1), Taric's Enforcers (1)
Silver: Amumu's Weaponmasters (1), Ashe's Swarm (2), Garen's Battlemasters (1), Karma's Spellslingers (1), Lux's Spellbreakers (2+me), Miss Fortune's Warmongers (1), Nunu's Snipers (1) Twitch's Dervish (1), Zilean's Dragons (1)
Bronze: Cassiopeia's Warmongers (2), Leblanc's Horde (1)
Huh, I know not all these guys are friends with each other, but I know some of them are. It doesn't seem to group friends very aggressively. That said, Poppy's Swashbucklers is definitely the coolest name and I'm going to have to defriend those other two guys before I hit gold to make sure I end up in it.