Sg,

What ever you choose, make sure you calculate your load and add 25% safety margin. For every generator out there, you need to derate them about 20% for constant load rating. So, if you bought a 1000 watt generator, you really want to run about 800 Watts continuously to keep the generator happy for a extended periods of time.

If you're powering a couple freezers and refrigerators, I would recommend something in the range of 3,000-5,000 watts. If you get a lot of power outages up there, definitely error on bigger, you'll be happy you did.