Well, because Stealth Rock would really help your teams sweepers net extra KOs, I would recommend Steelix over Lilligant. Here's a set I think would be great for you.
Steelix @ Leftovers
Ability: Sturdy
EVs: 252 HP / 96 DEF / 160 SDEF
Relaxed Nature
-Stealth Rock
-Gyro Ball
-Earthquake
-Roar / Dragon Tail
The set is fairly straight-forward, Stealth Rock to cripple Moltres and Honchkrow, Gyro Ball and Earthquake provide meh coverage, but they're your two most viable attacking moves. The last slot is a phazing move. Roar is the more reliable move, as it can phaze out Substitutes and is a guaranteed hit. Dragon Tail has the bonus of doing damage, but with not perfect accuracy, and without the ability to phaze out Pokemon behind subs. Your choice though, I hope I helped!