Hmm... how about sport bikes? Those 4strokes makes all kinds of power spinning upwards of 18,000rpm. I know I'll catch flak from diehard hogs for saying this, but Harleys are a bad example for representing 4strokes, as they are stuck with 1930s technologies.

Look at F1 and SuperBike racing and you'll see modern 4stroke and 2stroke technologies both making boatloads of power, but in general, though, 2strokes do make much more power at the same displacement than 4strokes.

Still, you can design a 2stroke to be a torquer and at the same time design a 4stroke to be a rev-happy high-RPM motor.