Does the left ventricle pump more blood than the right ventricle?

No. The left ventricle pumps blood at a higher pressure, and through much more real estate than the right ventricle, but the actual volume pumped by each ventricle is exactly equal at all times, except in certain pathological heart conditions. Think about what would happen if one side of the heart pumps more blood than the other. Excess blood would get backed up and accumulate since the opposite side is pumping lower volumes. In severe instances, this imbalance can be enough to cause death.