I voted DWC because with a little more effort it is my belief from what I've seen so far that results are better. Ebb and flow is for what it seems alot less headaches. No worries about resevoir temps within the chamber since you can keep your nutrient solution outside and keep it the same as the ambient temperature. Less likely to get root rot and other diseases due to high heat problems. Change outs of solutions, hell you could just run 2 seperate resevoirs and just move the pump to the other one then drain vs. picking up the plants and roots and the big ass plants and trying to balance them while not breaking the roots that are done tangled up in your airstones cause you done put root cultures and double dosed the nutes and it's like a little angel hair jungle in a 22 gallon tub and they drip all over the place and you need a mop to clean up after you done got the floor all wet then re-tie your plants back up cause the plant is getting to heavy and they are leaning all over the place cause you had to change it out every 2 weeks. DWC all they way!!!