My paranoia about the standard-issue type generator is the noise they make. From the TV shows I've seen, zombies are attracted to noise.
Also, I think many people do not realize just how much electricity they really use or how much fuel generators waste. For most houses, a 20HP generator would be needed in order to run all the conveniences found in the home (some only one at a time, such as ovens and A/C units). There's also the issue of Harmonic Distortion. The power company provides 5% or less Total harmonic distortion. Most generators are nowhere even close to this number. Quick research into any generator company's product line will reveal that the 5% or less THD generators are as much as triple the cost.
Many items can run without noticable degradation with a high THD, but it exacerbates fuel waste. For example, your refrigerator motor will not run as efficiently and will therefore waste more fuel. Some items will be outright damaged by it, particularly electronics. My TIG welder's manual indicates it cannot be run on power with more than 5% THD.
That aside, my approach has been to divide power generation into categories and address them individually. For night use, I have 100Ah AGM batteries which can be charged via solar panels during the day. Using an inverter, I can run a microwave and other small appliances without issue. I have also acquired 12VDC and 24VDC powered items such as lighting and PC-powered supplies. This saves me from wasting power through the inverter. Many items are available which can be powered directly from 12 and 24 volt DC.
I intend to limit daytime power generation to assisting with battery charging, large appliance usage, water pumping, etc. While I don't like the gasification process, I can get about 50% power from my 22HP generator using it. (I'm assuming the engine will need to be torn-down frequently in order to remove the tars and filth introduced by the process.)
The battery-based solution won't last forever, so I'm investigating Stirling and Steam engines (probably foolishly). I have also made an effort to convert my shop over to hydraulic power (motors, mostly) as running an hydraulic pump can be performed in myriad ways unlike AC generation.
And yes, I'm addicted to electricity.