best of breed

noun

the winning animal of its breed at a dog show

adjective best-of-breed

denoting the most successful technology in a particular field

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012