What are the stat differences between Pikachu and Hatenna?

Pikachu stats: HP 35, ATK 55, DEF 40, SP.ATK 50, SP.DEF 50, SPD 90. Hatenna stats: HP 42, ATK 30, DEF 45, SP.ATK 56, SP.DEF 53, SPD 39.

Which Pokemon is faster: Pikachu or Hatenna?

Pikachu is faster with 90 speed compared to Hatenna's 39.

WINNER

Total: 320

Total: 265

Pikachu: 2 wins | Hatenna: 4 wins

35 HP +7 42

55 +25 Attack 30

40 Defense +5 45

50 Sp. Attack +6 56

50 Sp. Defense +3 53

90 +51 Speed 39

320 +55 Total 265

Pikachu has a total stat advantage of 55 points over Hatenna. Pikachu wins in 2 stat categories while Hatenna wins in 4.

Pikachu is faster with 90 speed (51 points faster than Hatenna). This means Pikachu will likely attack first in battle.