The fine people at Preserving Christian Publications are now offering two different versions of the 1962 Breviarium Romanum. One is the Nova et Vetera edition which has been met with critical acclaim, the other I'm unsure about but it looks like the SSPX version released about a year or so before the other.
The main difference is the Psalm format. Although I don't have either edition, (all other things being equal) I am partial to the single column psalm formatting which most breviaries have moved to. Although the double column is more "traditional".