Name and description of the Task.
The advantage of tags is the power they bring. Tags can be added to Tasks and Issues only (no Milestones or Goals). For example, you can create a view of all tasks with certain parameters, plus ones that include or exclude specific tags.
In addition, like Area labels, you can choose to hide #Tags based on the view. For example, if you’re in a view that shows just the tasks with the #Paint tag, then all the task names will omit the word Paint, leaving you with task names like Prime & 1st Coat and Final instead of Prime **Paint** and 1st Coat and Final **Paint**. This declutters the view without sacrificing explicitness since the reader already knows that all the tasks are Paint-related.