All fields should be editable in the way that Labels are editable. (via a click "EDIT" button next to the labels and then modify the field in a pop up window
Once you edit a Label this way you shed tears of pain that the other fields are not this way.
The Labels plugin has the correct idea in how a field should be editable. I don't have to have a new page open with lots of extra data that I don't care about.
Just the item I want to edit with a single click!
If I want to edit the bug in more detail THEN I click the "Edit this issue" link.
This type of editing should exist on ALL pages except the "Edit this issue" page