Not knowing which editing software you have, the computer or the requirements of your projects makes answering your question a little difficult. The short answer is that either avi or mov can be good on Windows.
Both avi and mov files are "containers" - that is, they aren't a format of their own. They can contain video or audio of any number of formats or codecs - but only one at a time. You can find more about "containers" here:
http://en.wikipedia.org/wiki/Digital_container_format
More importantly than whether avi or mov is better, is what kind of editing software you're using, the processing power, available RAM and which version of Windows is installed on your computer.
Your editing software will determine which codecs are supported - recently released editors support a variety of formats and will edit them natively. And in general, if you have at least a quad core processor, a good amount of RAM and Win7 64 bit, any flavor of avi or mov will be usable.
