Clearly the best anthology of English poetry going, not least because it covers all poetry written in English, without the national restrictions of many others. And still within the limits of handy size and weight, so the extra depth and comprehensiveness of the new edition is welcome - even though it's a bit too sloppy as a paperback, and without hard covers will quickly turn into a football.
Including short poet biographies at the back of the book is a brilliant idea, and so is the essay on versification (which attractively incorporates specimens of verse from the anthology, rather than lines newly made up for the purpose). It's just a pity that this wasn't allocated an extra ten pages (maximum), since it could then have been rounded out into a complete stand-alone reference - a few areas are missing or too briefly discussed. There are many separate guides to versification available - all excellent, but recent ones are more personal and informal (and less typographically clear) than the presentation here.
Everyone will have favorites that are missing, or will prefer a slightly different emphasis to the selection. I would certainly cut some of the contemporary poems to make room for more from all other periods (the last fifty years take up a quarter of the book!). A number of poems, and even whole poets, show up on comparison with earlier editions and other anthologies. But, however regrettable some of these omissions are, in almost every area the selection at least manages to be (broadly) representative, and that's the main thing.
There is one area, though, where (trying to look at it objectively) I would INSIST that there is a clear failure in the selection, and that is in THE BALLADS. It seems way out of proportion in such a large book to include only twelve, especially when that means giving both 'The Twa Corbies' and 'The Three Ravens' (a beautiful and illuminating pairing though they are), but not also AT LEAST 'Thomas the Rhymer' - the greatest of all ballads - AND 'Chevy Chase'. Both feature story types and motifs otherwise unrepresented, and without which the world of the ballads cannot be fully understood: 'Thomas the Rhymer' even has something to say about POETRY itself.