These are all nice things Enduser, but the meta can turn out to be quite different in some situations, if you use the question originally asked. You just assumed he was noob, you were boss and then described what types of champions based on the pre-determined meta do, not why they would excel over a creative use of the 98 champions out there
Think of what a Singed, Volibear, Darius, Blitzcrank, Orianna would be like in a gank/ teamfight.
Multitude of grab/pulling maneuvers, cc, speed boosts etc etc. All it takes is for a few coordinated lunges at the damage dealing enemy champs and it's GG.