Gloves usually last a while, so when you are researching for new gloves, remember that advancements are being made all the time towards better safety.
A good glove should above all, provide best safety. Looks at crash footage from any series, CCS or Motogp, its the rider's hand that eventually make contact with the ground/asphalt, almost every time.
Research the No 1 hand injury, we are talking distal radius or Carpal bone fracture, buy a glove that claims (and hopefully a proven claim) to help protect against those fractures.