There is no one is better than the other, which one suits you goals is a better question. EQ is great for building and cutting, increased appetite, hardness, and vascularity. Deca is better for bulking, people tend to see a bit more water weight, it helps to lubricate joints and increases collagen synthesis.
Peoples results vary based on the compound, purity and dosage. Your own personal body chemistry will play a major role in how each works and the results desired. DPP is much more popular these days due to a much shorter half life, its much easier to manage and clears out of the body much faster than traditional deca does. Big downer for deca and any compound that effects progesterone can be deca dick and gyno. These sides again vary widely from person to person.