1
general::
Phrase(s): second to none
better than everything else. • This is an excellent car—second to none. • Her suggestion was second to none, and the manager accepted it eagerly.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
The best, as in Mom's chocolate cake is second to none. Shakespeare was among the first to use this term in The Comedy of Errors (5:1), when Angelo speaks warmly of Antipholus of Syracuse: "Of credit infinite, highly belov'd, second to none that lives here."
American Heritage Idioms