Dual Fuel Generators

Being able to help out the neighbors is one of the reasons I want it to be somewhat portable. I'm thinking one of the manual transfer switches that just has a plug for the generator to plug into. I know some will say you can backfeed through the dryer plug as long as you have the main breaker off, but I'd rather wire it right and not run the risk of energizing the line by accident should someone turn the breaker on.

I've looked a little at the Champion and the Firman just because I happened to see them in stores.