Eternity Summer is quite good, actually. I'd buy it if I dedn't have so many colognes to try to go through first (see my wardrobe... i literally have all those in my closet).
The newest would have to be Polo Black, which is all right, but nothing "unique" in my opinion. It's just not distinct. It's not like Very Irresistable, or L'Instant, or Rive Gauche, which you can immediately recognize. It just smells like a blend of Acqua Di Gio and Chrome.
for evenings, i quite like CK Obsession Night.