Any Obama pick will make us all long for the moderate view of Laurence Tribe.
Tribe will replace Stevens (or Breyer, ya never know), so yea, Ginsberg's replacement will be intriguing. But as I've pointed out before, quite literally Mao/Lenin/Clinton would be an improvement on Ginsberg, who votes lockstep dullard Leftist without any hint of Constitutional awareness.
Frankly, as Ginsberg's replacement, I want someone so radical and so insistent on writing absurdist neo-communist opinions that they consistently scare Kennedy into a Constitutionalist majority.