Time for a new generator. I want a portable because of cost. I've narrowed it down to these 3...

Westinghouse WGen 12000

Generac XG10000E

NorthStar 13000

All are supposed to have 5% or less THD. I'm leaning towards the Generac because they've been at it for a while. The Westinghouse is a about $200 more but has an additional 2000 watt capacity.

Opinions?