I thought that "Front Runners" was another slightly above average episode.  I like the premise, but I don't think the drama is paying off.  For me, the "brother" reveal at the end was a dull thud.  (Wouldn't Ahsoka already know this information in preparing for the assignment?)     
Filoni's 
commentary about the episode  is a must watch for Star Wars fans.  He explains in detail how the Clone Wars beget both imperialism and the Rebel Alliance.
A preview for "The Soft War" is below:
[flash width=560 height=315]http://www.youtube.com/v/DL-5exw31BE?version=3&hl=en_US&rel=0[/flash]