I use to read it a lot of it when I was younger. My interest in them drop a lot since a few years but I like to read some of them from times to times. I learn how to read with "Tintin". It helps me a lot for to become curious about the world around me since he travelled all around the world, it involved history and politics and even science. A real classic unlike a lot of comics.
Asterix is funny. Sometimes it's a satire of the fall of the western civilisation as they make parallels between the roman empire and the contemporary civilisation.
Calvin and Hobbes can be interesting too.