My party usually follows this pattern:
* The one I'm leveling up to L100
* The one I'm leveling up to L40 (holding Exp. Share)
* Pelipper, my trusty FLY Pokémon
* Phanpy, picking up items
* Linoone, picking up items + having CUT
* Zigzagoon, picking up items + having SURF
Right now the party is though the following: (hunting for my first shiny >.<)
Lanturn L40
* Ability: Illuminate
* Gender: Female
* Item: None
* Trainer Memo: Naughty nature, Lv24, Underwater (met).
* ID No.: 27038 (that's me)
* Stats: HP 175, Att 83, Def 68, SpAtk 77, SpDef 61, Spd 74
* Moves: Water Gun, Confuse Ray, Flail, Spark
Poochyena L34
* Ability: Run Away
* Gender: Female
* Item: Exp. Share
* Trainer Memo: Sassy nature, Lv4, Route 102 (met).
* ID No.: 27038 (that's me)
* Stats: HP 85, Att 50, Def 38, SpAtk 32, SpDef 28, Spd 32
* Moves: Take Down, Swagger, Sand-Attack, Bite
Pelipper L100
* Ability: Keen Eye
* Gender: Female
* Item: Mystic Water
* Trainer Memo: Rash nature, Lv3, Route 103 (met).
* ID No.: 27038 (that's me)
* Stats: HP 305, Att 141, Def 229, SpAtk 224, SpDef 158, Spd 192
* Moves: Hydro Pump, Ice Beam, Fly, Protect
Lugia L92
* Ability: Pressure
* Gender: None
* Item: Leftovers
* Trainer Memo: Jolly nature, obtained in a trade.
* ID No.: 09706 (Gale of Darkness)
* Stats: HP 354, Att 206, Def 272, SpAtk 175, SpDef 288, Spd 273
* Moves: Psycho Boost, Aeroblast, Earthquake, Hydro Pump
Phanpy L40
* Ability: Pickup
* Gender: Male
* Item: None
* Trainer Memo: Relaxed nature, Lv27, Safari Zone (met).
* ID No.: 27038 (that's me)
* Stats: HP 146, Att 77, Def 75, SpAtk 44, SpDef 39, Spd 39
* Moves: Rollout, Defense Curl, Flail, Take Down
Linoone L38
* Ability: Pickup
* Gender: Male
* Item: None
* Trainer Memo: Jolly nature, Lv3, Route 101 (met).
* ID No.: 27038 (that's me)
* Stats: HP 125, Att 74, Def 63, SpAtk 43, SpDef 53, Spd 110
* Moves: Headbutt, Fury Swipes, Cut, Covet