Simipour

Simipour is bad, but at at least it's happy about it!

Best PvE Offensive Moveset

• Water Gun pairs with Surf for Simipour's maximum potential.
• Bite should go with Crunch.
• Hydro Pump is a good move, but it's outclassed by Surf.

Best PvE Defensive Moveset

• Watergun outclasses Bite in most matchups.
• Crunch is 3-bar, which makes it preferable.
• Surf is a good choice as well. 
• Hydro Pump is too slow to be worthwhile.

Water Gun and Bite both sport good stats. They have different strength/weakness profiles, though Water Gun also gains STAB, which makes it a bit better in most matchups. Surf is an expensive and fairly effective move, while Crunch is very similar, while giving more coverage options.