Cappuccino is lighter. The Cappuccino looks kind of like coffee ice cream to me (or coffee with lots of cream). And also, to me, the Brown has a little bit of a greenish tint to it.
I personally like the Brown, but the Cappuccino has lots more fans, I think.
Edit: Actually, I am referring to "regular brown" Cordovan Strand, or the kind currently on the website. Were you referring to Dark Brown calf or cordovan?