Exciting game! If this exciting team (RCB) cannot win this time also, then we can comfortably tell that T20 is the format only for underdogs.
You can observe that with World T20 also (Australia's dominance in World ODI doesn't reflect in T20. Even in IPL, so many underdogs have won (Deccan Charges, Rajastan Royals, etc, were never expected to win. To some extent even KKR and CSK were not really threatening and there were always other stronger teams playing against them). With this we might have to say that RCB's real chance was when they were also underdogs who lost to Deccans in the 2nd edition! This time another underdog (Pune or Gujarat) may win, let's hope this theory fails this time and RCB wins (at least Kohli deserves it after all his hard work for past few years)