Hmm..... There is no accurate answer for this question. Because there is no best team on Pokemon, you just need to consider the pros and cons of the Pokemons to create a good team. Well, my team goes like this.
(No trading, supportive moves or TMs)
Torterra - Earthquake / Leaf Storm / Crunch / Cut ( needed to teach someone this )
Mothim - Silver Wind / Psychic / Air Slash / Bug Buzz
Staraptor - Brave Bird / Close Combat / Fly / Aerial Ace
Gyrados - Hydro Pump / Ice Fang / Surf / Waterfall ( I didn't teach it Hyper Beam because I don't like moves that need resting )
Raichu - Thunder / Strength / Slam / Discharge
Lucario - Close Combat / Dragon Pulse / Rock Climb / Rock Smash ( need to teach someone this )
PokeFanRyan's Best Team would be:
Infernape - Flare Blitz/ Flamethrower/ Blaze Kick/ Fire Fang
Staraptor - Brave Bird/ Close Combat/ Air Slash/ Sky Attack
Raichu - Thunderbolt/ Iron Tail/ Volt Tackle/ Thunder
Golem - Hyper Beam/ Protect/ Earthquake/ Explosion
Lucario - Aura Sphere/ Bone Rush/ Force Palm/ Dragon Pulse
Floatzel - Ice Punch/ Ice Beam/ Ice Fang/ Surf
Meganium (As A Substitute) Petal Dance/ Synthesis/ Magical Leaf/ SolarBeam
I use Ho-oh arceus darkrai jirachi groudon and deoxys
my team
all of 'em
action replay is best
Misty is not in Diamond/Pearl. Sorry.
mainly its your rival inpokemon platinum but Cynthia on Pokemon diamond and pearl
Both Pokemon Diamond and Pearl have Team Galactic as the main antagonist team.
You may not join Team Galactic in Pokemon Pearl or Diamond.
the best team in Pokemon pearl is Torterra Rapidash Floatzel Staraptor Weavile Luxray its up to you to decide what you want but try to cover all types
I use Ho-oh arceus darkrai jirachi groudon and deoxys
They are both equivalent, with minor changes in what Pokemon appear, such as Kabuto in Pearl and Omanyte in Diamond.
A good team for Pokemon diamond or pearl is probably Empoleon, Staraptor, Roserade or, Steelix, Machamp, and Haunter or Gengar.
Diamond
Import them from Diamond & Pearl.
my team
Empoleon is the best!
well there's two diamond and pearl an Pokemon ranger i would go with diamond and pearl