Great breakdown. I figure 1 swing vote is better than the 2 we had.
If the Roberts court does prove to be 4-4 with one swing vote, it will be the most balanced court at least since the Eisenhower years, maybe longer. So it would definitely be an improvement.
However, there are a great many decisions the court makes which are not about the conservative vs. liberal ideological divide so much as they are about the role of the Federal government. I hope over time to be pleasantly surprised, but for now I don't see the new court rolling back Federal power. For example, I suspect the 2005 (or was it late 2004?) eminent domain case would have been decided the same way by the new court as was with the old.