By "bad landing" do you mean crash landing?

My 1/3 scale Fokker EI (which weighted 42+ pounds and flew for 7 seasons) had no suspension in the landing gear. I had some rough encounters on landing over the years.........everything from heavy landings to hitting the high side of a rolling (kind of hilly) runway - this launched the plane up in the air about 5 feet, to skidding it sideways (very heard on the wheels) and never did anything but bend an axle a couple of times.

On one very heavy landing the wings pushed down pretty hard from the G loading and broke a servo arm on the wing warping servo.

It even nosed over twice.......the only thing that broke was the machine gun.

The only time the gear sustained any damage was when I crash landed - it broke an axle, tore up a wheel and busted the machine gun......plus a violent pitch to an upside down landing position.

So my answer - agian - is yes, a gear with suspension is always better than one without any suspension.......but not having suspension doesn't necessarily lead to damage on a bad landing.

But on a CRASH landing, it pretty much doesn't matter whether there is suspension or not - damage will occur.