Having more guides with you on the trail is more important than using porters, and higher paying for them.
Where possible, are have animals carry your duffel bag. Nak’s (a combination of Yaks and cows) are what we use to carry the loads in the Everest Region.  They are more reliable than porters. Some people might argue that you are employing people to work in the region, however by using animals, you are also supporting the local community. The animals have to be managed by people and also fed and taken care of by people.  For certain routes in the region, you do have to use people, if animals can not pass the terrain.  However, whenever possible, we recommend using animals. Having more guides with you on the trail is more important than using porters, and higher paying for them.  This is the best way to manage an Everest Base Camp Trek.