Dino Charge: All the males from the core 6 (Red, Black, Green, Blue, Gold)
Yeah, Dino Charge had probably the hottest cast of all seasons. Even the auxiliary rangers like Reuben Turner or Jarred Blakiston were super attractive.
2nd place would be Ninja Storm, were 4 out the 5 male rangers I found attractive. The girl ranger in this season had a fine sausage party to pick from lol
Operation Overdrive might be the least hot cast, with Megaforce following closely