The DMZ will provide better gains as it's an actual PH, but as it's a stronger compound it poses more potential sides. But you'd still need a good Test Base,
DHEA
Standard Test Base
Pro's-Easy and smooth base with no Side Effects.
Con's-Doesn't provide any additional gains.
4-Andro
Bulking/Wet Test Base
Pro's-Can provide additional gains, Helps to keep joints lubricated.
Con's-Potential estrogen related side effects, Increases water retention/weight.
(Would never recommend 4-AD)
Epi-Andro
Cutting/Dry DHT Base
Pro's-Can provide additional gains, Can provide additional fat loss, Can provide additional water loss, Reduces estrogen, Increased "Alpha Male" feeling, Increased aggression, Increased Strength capabilities.
Con's-Can aggrevate joint pain, Potential MPB acceleration, Potential post cycle estrogen rebound.