Which is better ac or dc generator

so yeah.

If you live in America, we use AC outlets, so that is the type of generator that you will want, unless your generator comes with an adapter that will convert DC power to AC.

If you live in Europe and other parts of the world, you use DC outlets, so that is the type of generator that will work best for you.

Most parts of the world use AC, but different countries use different voltages and frequencies. Automobiles used DC generators until the late 1950s or early 60s. Some of the advantages of AC are: (1) you can use transformers to change the voltage, and (2) the generator doesn't need a commutator and brushes that wear out.