Everyone here is correct to some degree. There is nothing wrong with any number of other units but realize that when you do buy a cheaper unit you are getting a cheaper unit. You can compare manufacturer specs all day long but the difference comes in when you put the maximum test to each generator.
If you run them maxed out or keep overloading them my money is on a Honda or Yammie. I accidentally plugged a propane frig 120 v into a 400 Aims inverter and instantly blew it's guts out. It didn't pop a fuse, it died. I have overloaded my Xantrex 1000 and 2000 and just reset and carry on. I ran a Megawatt power supply at the high end of it's range and it started smoking yet I can run a Meanwell just as hard and it keeps on pumping it's heart out. I would buy a 3400 Champion or a Ryobi or a Predator BUT I would operate at the lower side of it's ability. If I wanted to size a genny to run at the top end of it's power range I would buy red or blue.