Choosing Bekembe-Bakala (which requires you to have found the "Hatchet of the Ancients") gave me:
+9 attack
+198 strength
+174 Res
+85 Spd
+124 Mnd
+104 HP
+21 SP
Forest Hunter gave me:
+161 strength
+68 SPD
+62 HP
Wise Spirit gave me:
-68 SPD
+247 MND
+21 SP
Results may vary based on level, equipment,etc.. I don't know- but that should give you an idea.