My team when I cleared the E4 for the first time, about a month ago:
Lapras Lv.67 (Solo:ed all but 1 of the champions pokemon)
Scyther Lv.72 (Got at Lv.51 from trade)
Tyrantrum Lv.66 (Was along with Metagross probably the main battlers through the story)
Metagross Lv.73 (Got a Lv.1 Beldum very early in the game from a wonder trade)
Dragonite Lv.72 (Got at Lv.1 as a Dratini later in the game, trained up for the 4th gym)
Noctowl Lv.65 (Lv.50~something from trade that mostly just filled the gap and didn't do much - except flying)
Attacks:
Lapras: Hydro Pump, Rock Smash, Ice Beam, Surf
Scyther: X-Scissor, Night Slash, Cut, Air Slash
Tyrantrum: Crunch, Head Smash, Earthquake, Dragon Claw
Metagross: Hyper Beam, Zen Headbutt, Meteor Mash, Hammer Arm
Dragonite: Dragon Dance, Outrage, Aqua Tail, Thunderbolt
Noctowl: Take Down, Air Slash, Zen Headbutt, Fly