What is the best Pokemon to catch after you've beaten the Pokemon league in the bug catching contest?

Question

I've been trying to get a sun stone for a while in heart gold and I think the contest is one of the easiest ways, plz help.

Answer 1

Scoring

>Generation IV
The score earned for a given Pokémon in Generation IV is the sum of the following:

• The level of the Pokémon relative to the maximum that can be found in the contest (e.g. before the National Pokédex, the maximum value for Paras would be 17, but after the National Pokédex, this would be 34), as a percentage
• The Pokémon's IVs relative to the maximum (186), as a percentage
• The Pokémon's HP relative to its maximum, as a percentage
• A rarity factor, either 60 (Caterpie, Metapod, Weedle, Kakuna, Wurmple, Silcoon, Cascoon, or Kricketot), 80 (all Pokémon not mentioned), or 100 (Scyther or Pinsir)
• Other factors, such as Shininess, do not affect the outcome.

So, generally speaking, best ones would be Scyther/ Pinsir.

Bug Catching Contest

Answer 2

Scyther and Pinsir.

Note that the following things also determine whether you win or not:

• The level of the Pokemon compared to the maximum avaliable
• The IVs of a Pokemon compared to the maximum
• The Pokemon's remaining HP

http://bulbapedia.bulbagarden.net/wiki/Bug_Catching_Contest#Generation_IV_2