LiquidOrder pretty much covered it.
As for your CC, dragons, balloons and minions will all be nice.
Deploying
1) Lure CC and heros
2) Either lightening or minion those suckers
3) Deploy Balloons near a few air defenses (but don't spread your troops to thin)
4) If Wizard tower is in the way, deploy on balloon out front to take the brunt of its attack
5) Drop 1-2 rages to quickly take out air defenses.
6) Put minions on clean up
Minion in depth
I have not used balloons allot but I love these flying devils
The biggest mistake people make in using these guys is throwing a mass in, before checking for bombs. So if the balloons haven't check already - send a few in ahead of the pack (nothing takes the steam out of a minion attack like a red air mine)
Luring cc troops is important for minions to. As a mass of minions just doesn't seem to attack very well when a line of archers pop out of the CC. (They seem to target the same one, causing lots of wasted time)
Uses
1) Clean up
2) Targeted attacks - deploy in groups of 5-6 to quickly take out exposed archer towers and air defenses (avoid wizard towers and teslas as they will rip you apart)
3) Storage blitz - drop a rage and 20-30 minions will tear apart a vault in seconds (if you get those wizard towers out of the way)
4) Distractions - if those splash towers are out of the way minions can make that huge DPS of an air defense go to waste
My favorite use is the surgical strikes to defenses and blitzing storages.