Hi there, 

Thank you for posting your query on our platform.

First of all, there are no great coaching centres, there exists only great students who are hard working, determined and motivated enough to pursue their dreams. 

Next of all, I can't talk about the best coaching centre literally but I can surely give out a comparative picture regarding two of the most popular coaching names when it comes to cracking science related competitive examinations in India. 

You know the names already, Allen and Aakash. 

I was a classroom student of Aakash and had a distance mode course for Allen, both for NEET. 

Allen in all terms of study materials and mock tests is way better than Aakash. Aakash's mock tests are filled with unnecessary crap depending upon their text material which is again filled with load of unnecessary data. 

When other coaching centres prepare you for the real exam of NEET, Aakash prepares for only AIATS (All India Aakash Test Series). 

In comparison to that, Allen study materials are well structured without anything extra or unnecessary. Moreover, their mock tests are very much apt and suitable according to the latest standards of the real exam. 

Whatever you score in those tests of Allen, remember that you will score around almost the same in the final exam. 

Any day I'd put my bet on Allen. 

Hope this helps. 

Wishing you luck!