I have to admit, some two-stroke sounds I don't necessarily like. Some bikes sound like there's shredded aluminum foil in the exhaust somewhere, it's kind of annoying. But if you have a real crisp, radical cackle that sounds like a tiny top-fuel dragster, that can be a wonderful sound (although that kind of sharpness often requires you remove the silencer, which is going to be a bad idea 90% of the time). And then you get the bigger two-strokes, like 400+ cc which roar like a Grizzly Bear when you pour on the gas. You can just feel the torque through the air. Four-strokes can sound cool some of the time, but honestly a four-stroke engine needs a higher number of cylinders to really get good sound.