Top 5:

• Prince of Tennis
• Yowamushi pedal
• Blue Exorcist
• Bleach
• Diamond no Ace

Other anime I really like:

• Bungou Stray Dogs
• Fullmetal Alchemist Brotherhood
• Kekkai Sensen
• Durarara
• Tsuritama
• March Comes in Like a Lion
• Tiger and Bunny
• Anonymous Noise
• Free!
• One Piece
• HxH
• Silver Spoon
• Heroman
• Parasyte
• Air Gear
• Samurai Champloo
• Kids on the Slope
• Michiko to Hatchin
• KHR
• kakegurui
• kimetsu no yaiba