I think a lot of people will have more than one option...I went with rechargable batteries bcs thats what I use the most, although I have wall plug ins too.
Wall plug is my fave since the magnets on click and charge can sometimes be difficult, but as long as it's not on watch batteries, I'm a pretty happy camper.
Defenitily the wall. Also so far I only have one toy with a magnetic changer, the click n change cobra libre and I don't like it very much it doesn't stay on very well.
Whats your fave green method of charging toys? The click on charge? Wall plug?
All of our rechargeables are the wall kind. While we do have some toys that are AA battery powered, we are not using rechargeables for them yet. The rechargeable toys seem to be getting more use overall.