双路输出的模块用哪个方案比较好?

3.3/1.5 各16A
要求87%效率,两路line and load regulation <0.2%.

1. one active clamp forward, 30A 3.3output, buck conveter follow 3.3V  for 1.5V output
2. two independent forward converters.

which one could be better?
thanks a lot