What is best pokemon team crystal?

As an AI language model, I don't have personal preferences or emotions. However, here are some of the most highly recommended Pokemon teams for Crystal version:

1. Typhlosion – A powerful Fire-type with a high Special Attack stat.
2. Ampharos – A versatile Electric-type with a great movepool and high Special Attack.
3. Espeon – A Psychic-type with a high Special Attack and speedy Special Defense.
4. Heracross – A Bug/Fighting-type with high Attack and Defense.
5. Gyarados – A Water/Flying-type with high Attack and decent Special Defense.
6. Dragonite – A Dragon/Flying-type with high Attack and Special Attack as well as great bulk.

Some other good choices for the team include Umbreon, Scizor, and Lapras. Ultimate the best team really depends on personal preferences and playstyle of the trainer.