User blog comment:KaiserLos24/Champions for Pre-30 Summoners/@comment-15244341-20140317121402

Champions with as much free damage and defensive tech as possible. Garen, Xin Zhao, Nasus, Warwick... Maybe the champions with a passive Guardian Angel if the player is actually good at the game, especially Aatrox for the jungle (quite a good starting jungler, if a bit too expensive in IP).

Also, Darius has insane amounts of damage with ot without masteries, as an effect of his magic damage passive, decent damage skills, free ArPen and scaling true damage on his ultimate. With something like a Black Cleaver or Hydra into tank items he defenitely can deal more damage than a good number of champs, even if he has no runes.

And not you question, but I'd recommend picking defensive runes (Armor Yellows, for example) first thing. They are actually a great deal more useful and normally even cheaper than damage ones.