Balance of Power in the Wizarding World

[samnanya]

No: HPFGUIDX 107502

I am very curious about what others may think regarding this :

With the death of Sirius, I feel that there was a shift of power
to the dark wizards which would be very dramatic if DD were to
fall. Sirius was by all accounts a very powerful wizard for the
Order, second only to Dumbledore. 
If there is to be this "battle" that everyone seems to want, how
do the adult combatants compare ?

My view: [In "good -- bad" format] - 

Dumbledore & McGonagall -- Voldemort & Bellatrix 
Sirius (dec) --  Dolohoff
Hagrid & Shacklebolt -- Crabbe & Goyle
Arthur Weasley -- Lucius Malfoy
Lupin -- Wormtail  
Tonks, Mad Eye Moony, Flitwick -- other death eaters 
Snape -- Rookwood Avery  {the devious group}
Crookshanks -- Wormtail {both are weak and crafty}
Trevor {a prince} -- Nott {hasn't been very impressive.....}

A War doesnt make sense unless there is a balance of power to 
start. Otherwise one side would have vanquished the other a
long time ago....
I know I probably left some people out....
Suggestions and comments?