Who is better Spider-Man or Aquaman
Your probably thinking spider-man will win straight however this will still be a good fight.
Tactics
Spider-Man is really smart so is Aquaman. Aquaman can control water and use water to defeat Spider-Man however Aquaman only has super strength in water.

Abilities
Spider-Man has

• super strength
• healing
• climb walls
• shoots webs
• spider sense
• master combat                             

Aquaman has

• telepathic
• super strength in water                                         
• healing
• hydrokinesis

In a fight Aquaman could use water around him and talk to fishes to come and help even in a city, a city is full of water hydrants and pipes that lead to a river or a sea so aquaman could use that, however spiderman can use his spider sense to tell him if water is coming but if aquaman gets a load of water and is drowning spiderman he can beat him up and spiderman powers are useless in water.

AQUAMAN WINS !