I've talked about the St. Vincent on here before - I don't get what other people hear that I don't. I find Actor/Strange Mercy/St. Vincent all very even quality-wise, personally.
I think Case is trying to be a little more diverse musically, which is fine, but it does mean her records have become more hit-and-miss. They still have some great songs on them though.
The last New Pornogs was definitely more memorable to me than Brill Bruisers and probably better than Together and Challengers as well (it's more fun at the very least).