Buy your last generator first. That means dont buy a cheapo and then have to dump it and buy a good one.
Speaking in terms of 2000 watt gennys, the Champions are OK as are the Yamahas (which are better) but both lack the incredible surge capacity of the Honda.
But both pale in comparison to the newest Yamaha 2800 units. And yes, I have compared the performance of all of them.
If I could dump my Honda eu2000 for what I paid for it*, I'd sell it and get the bigger Yamaha.
So this is not the time to save a buck. You wont be sorry.
(*It is NOT for sale.)