What Team Has Impressed You Most During Finals Play [POLL]

The Heat, Spurs, Bruins and Blackhawks are all vying for titles.  All have been impressive in their own way.  The Bruins battled back from a three-overtime loss in Game 1 to win in OT in Game 2.  The Spurs are one win from clinching the NBA title after two wins at home in the middle of the NBA Finals.  What team has been most impressive to you during finals time?  Vote here: