Question: what are the strongest devil fruits?
Answer: Hobby-Hobby Fruit (Hobi Hobi no Mi)
Tremor-Tremor Fruit (Gura Gura no Mi)
Soul-Soul Fruit (Soru Soru no Mi)
Rumble-Rumble Fruit (Goro Goro no Mi)
Mystical Zoan Type Phoenix Devil Fruit.
Glint-Glint Fruit (Pika Pika no Mi)
Ice-Ice Fruit (Hie Hie no Mi)