Ooo, I somewhat heated debate.
I knew it wasn't going to be long before the dictionary would come out. lol
So you got me on that one.
Anyway, what if the BC "cast" its Yamato and the DA casted its Feedback @ the same time. And since they have 10 matrixes the BC would still be able to hit the DA. Yes, the BC would lose its energy at that point.
If I'm not mistaking, 1 yamato hit would kill a DA. Thus, the DA wouldn't be able to cast a 2nd spell right after it casted Feedback.
We must also not forget move ability. The BC has the upper hand for this, hands downs. (intering phrase, lol) The DA needs to be transported around thus leaving itself extremly open to attacks. If it dies in a transport its gone, while the BC doesn't have that problem.
Also, a BC can get repaired. A DA cannot unless its allied with a Terran and that Terran has a medic.