Since the shot clock (modern) era the East has been the Beast......a few examples..

1955-1979 (prior to Bird & Magic)

East 19
West  6

1981-1999

East 12
West  8

Prior to the 2000 Finals the East held a 31-14 advantage over the West.....

Since 2000 the West has been able to catch up somewhat with a 9-3 run...

but, during the modern era, the East still holds a 34-23 advantage.....I found this very interesting....