What is the best way to repair small holes in my siding? There used to be a satellite dish hanging from our siding which has since been moved, but of course, there are now holes there. Thanks.

You can try closing the holes with some paintable caulk and then touching them up with paint, but I highly doubt you'll get a good match, especially on a dark color. Pretty tough to match the faded, oxidized, acid rain washed look of aluminum siding that's been hanging for a few years.

I don't really care as much about finding a matching paint. I may have the entire house, including the siding, painted this summer anyway. Is caulking better than an epoxy filler type material which I have read can be used?

If I was going to repaint the whole thing, then I would use an automotive type body filler. If it's properly sanded, the repair should disappear completely. After painting, the repair should disappear completely.

What type of automotive body filler? Is it the epoxy filler I mentioned earlier? I don't really have the capability to sand but can it still be done adequately?

It's a 2 component plastic material sold at auto supply places, like Autozone. Bondo is a brand name for one of them. Scuff up the area you want to fill with some coarse sandpaper. Tap a slight depression in the area of the hole. Mix the filler and apply with a squeegee or putty knife. When it hardens block sand it smooth with something like 120 grit sandpaper. Just don't over apply the filler or you will be sanding your butt off to get it smooth. If your siding has any kind of imitation woodgrain texture to it, you will lose that too.

That does not sound too bad. I'll obviously wait until it gets a little nicer outside to do all that. You think the people at Autozone will know what I am talking about if I tell them what I want to do and that I am looking for something like Bondo?

They certainly should. And yes you'll want to wait until the weather warms up.