The Blue Mask is a hipster choice, honestly. It was the less terrible of the albums to come after Transformer and Berlin, indicating that maybe, perhaps, Lou would start producing work that wasn't disappointing in the context of his earlier stuff. Then he went down a hole again.
A wonderful piece of art that performs one act of emotional gymnastics after another. From the no-nonsense approach of "Vicious" to the bombastic "Andy's Chest", and from the ominous yet soothing medleys of "Perfect Day" to the vivid description of The Factory's denizens in "Walk on the Wild Side"; this is a masterpiece through and through.
"VU" and "The Velvet Underground" is not the same album. He was referring to the latter as being a 10/10, which I agree. It's a flawless album, just like White Light/White Heat. The eponymous album is the first post-John Cale album with Doug Yule as the replacement, and VU is an outtakes album which most of the songs were used on Lou Reed's first album. Even if WL/WH was obviously the most important, you can't really rank WL/WH, TVU, VU, and Transformer in any order. It's a matter of personal preference. "Is not a 10/10 album. stfu", who says? You? Why does your opinion matter more than anyone else? I bet you're one of those people that think the Rolling Stone Top 500 Albums of All Time are set in stone and if anyone challenges it you go into a hissy fit.
I love Lou Reed, but if David Bowie hadn't produced it, I don't think it would have turned out as brilliant as it did.
Especially the backing vocals of Satalite of Love and the sax solo in Walk On The Wild Side