Dear Student,

To clear JEE Advance you need only two things. One is a good teacher and another one is your hard work. All the three teachers that you mentioned above are the top teachers in the field of mathematics.

In my viewpoint Amarnath Anand ( ANNA )  sir is best for mathematics. He is the best teacher for this subject. His way of teaching is very nice . He clears concepts from very basic and take them to very advance level.

Formerly ANNA sir was in ALLEN, Kota . But now he is the Director of Nucleus Education. Also he has published some books of maths. These books are good for JEE preparation. These are listed below.

• Thomas Calculus for JEE
• Algebra Problems and Solutions

Also the other teachers are good but ANNA sir is best.

Hope it helps.