The spread you use is heavily dependent on the team style you are running.
For example, on a Hyper offense team I would advise the Choice Scarf Set (Max Spa, Max Spd), simply for the speed factor as well as the ability to hit hard. However, if your team is reliant on survival and reliability, then i would suggest Croogre, which according to onsite is
Kyogre @ Leftovers
Drizzle; Bold
252 hp, 252 Def, 4 spd
-Rest
-Sleep Talk
-Scald/Surf
-Calm Mind
This kyogre works especially well on a team with chansey, whose heal bell can recharge it after resting and switching. Overall, the Choice Specs, Choice Scarf, and RestTalk Ogre are the most synergetic in terms of teambuilding, whether he becomes an offensive or defensive force.