So I am trying to decide which tire to put on my Karate Monkey for commuting/road duty. I will be riding on some rougher roads, and possibly a little dirt and gravel, but mostly on pavement.

I am looking at the Schwalbe marathon and the Schwable Big Apple

I am looking at a 45mm marathon or the 50 mm big apple. The difference in weight between the two is pretty similar, and I know the big apple is actually only about 45mm wide when it is mounted on a 22mm wide rim. The marathon is $5-$6 cheaper per tire.

So any suggestions or recommendations from your experience?