Alex,
You must be one of the 300 people in the concert, this is what Michael Arnopol had to say when asked this question on this very forum. He goes by the handle "Mikejazz" here. Havent seen him around lately though.
I also have the album Verse and in my opinion it is different from the rest, mainly because it contains songs penned by Barber herself so that makes the songs original, on the other hand the previous albums were songs penned by others with few of her own on each disk (from the music side). Verse is an album which may take time for some to appreciate, it is one of those albums. It was the last of Barber's album purchase for me, but, for Tommy it was the first. So it would be very interesting to see what Tommy's opinion would be when he gets any of her albums prior to Verse.
I think it would be very appropriate if you (Tommy) came back to this thread and share your opinion after you have listened to her albums. Get them soon we are waiting for your feedback! If possible get them all :-)