KingD19
Shai-Gen's Enigmatic Wong
Well, Ben could barely hold a firetruck, which he needed help from Sue, and maybe Reed, I can't remember, to pull back on the bridge.
Mr. Incredible was arm curling two train cars, with each arm, and bench pressing one to if I'm not mistaken. I think that those weigh much more than a single firetruck. Also, fighting the giant robot thingy, I don't know how much it weighed, or how hard it hit, but it couldn't take him down.
And in the movie, I saw Sue use her force fields as a shock wave, molding them to hold objects, and defensive structures. A shockwave wouldn't stop Mrs. Incredible, or Violet, or be quick enough for Dash. And if she tried to grab one of the incredibles, Mr. Incredible could break out, and Violet could make one to counter Sues.
And the FF may outweigh Dash and Violet in the experience dept., but Frozone, Mr, and Mrs. Incredible have been heroes for years. While the FF have been heroes for months, maybe a few years tops at the time of the sequel.