Currently in ReadyAPI, the asserted values are not displayed. You have to actually open the assertion (double click on the assertion) to view the asserted value(s). This is somewhat cumbersome, as a ...
AAB I sometimes use the rename (F2) option on simple assertions to display the asserted value, like "Match content of [node] = [expected result]", but this takes a lot of extra time to do.
Would love to have the expected assertion values more easily displayed for the types of assertions where this makes sense.