Best faculty ca final group 2

Which is the best faculty for CA Final Group 2 for DT, IDT and AMA.

Direct Tax- Durgesh Sir or Mehul Thacker and kindly give reasons

Indirect Tax- Dippak Gupta or Mehul Thacker, kinfly give reasons too.

AMA- Purshottam sir or Sanjay Agarwal, kindly give reasons.