Spark vs. Sierra in PGO Holiday Part 1: Optimal Choice

In Pokémon GO's Holiday Part 1 branching research, trainers face a choice: aid Spark or Sierra. While official announcements omitted details on this free research (available December 17th-22nd, 9:59 AM local time), the decision hinges on preferred Pokémon types and reward encounters.

Choosing Your Path: Spark or Sierra?

The core difference lies in the Pokémon type focus: Ice (Spark) or Fire (Sierra). Both paths offer similar rewards beyond the initial encounter.

Spark's Ice-Type Challenge

Selecting Spark directs you towards Ice-type Pokémon. Completing Part 2 rewards an Alolan Vulpix encounter.

Part 2:

Part 3:

Sierra's Fiery Pursuit

Choosing Sierra focuses your efforts on Fire-type Pokémon, culminating in a Shadow Vulpix encounter in Part 2.

Part 2:

Part 3:

The Verdict:

The final decision rests on your desired Vulpix variant (Alolan or Shadow) and preferred Pokémon type for catching during the event. Pokémon GO is currently available.