I just had the best match ever. 5v5, one of our guys checks out almost immediately. The other keeps disconnecting for 5-10 minutes at a time. So it's me (Kayle), Teemo and Ashe against Nasus, Ryze, Teemo, Caitlyn, and Master Yi.
The three of us manage a frantic defense (helped by the fact that the guy playing Teemo was a holy terror...had multiple triple kills). Still, we're slowly losing ground and are left with just our inhibitor turrets. The random disconnect guy (playing Amumu) comes back and tries to help but at this point he's lvl 4 and the whole enemy team is 10+ so he's more useful to us while he's dead. The 3 of us are all lvl 18, because we've survived multiple gank attempts and made them pay for it.
At one point, *all five* of them try a mega-gank. It ends up with all of them dying and the three of us plowing deep mid and taking out both field turrets.
Finally, it's looking grim. In desperation, Teemo calls for all hands to Baron Nashor. We toast him, then proceed to charge mid and tear through the turret, inhibitor, nexus turrets and finally the Nexus itself in about one minute total. The level of "FUUUUUUUUUUUUUUUUU----" from the other team was palpable.
Bottom line: 3v5 almost the entire match, and we had an EPIC ass-pull comeback win.
Oh and I think I've found my muse, and her name is Kayle. This is the character I was meant to play. Most of my mains on whatever MMORPGs I play are group healers, and I'm pretty damn good at it.