a) Overview: The graphical presentation.
b) Processes: All processes are listed here – one can filter down based on the values, can right click and get more details about the processes, kill the process if needed and also trace that process in SQL Server Profiler. How nice! No waste of time – everything is integrated.
c) Resource Waits: All the resource waits (CPU, Latch, Buffer I/O etc.) are listed here and one can easily filter down based on the values if one wants.
d) Data File I/O: All the data files for a given instance are listed here and one can again filter down based on the values for different columns.
e) Recent Expensive Queries: This is very handy. All the recent expensive queries are listed – one can again filter down based on the values, sort the data or right click and check the execution plan for that query or can even chose to edit the query text in which case it will open up in another SSMS query window and you can check and tune the query.