Looking for 2000-3500 Watt suggestions

I am looking for something in the 2000-3500 watt range with a 30 amp female. I will be using it for both work and RV. Because I will be using it for work I am curious to hear what brands have been reliable with the proper maintenance.

Been trying to make sense of the different brands and from what ive gathered you have 1)Honda

2)Yamaha

3. Champion or everyone else.