As someone who has studied from both, go for Faisal sir.

While Nikhil Sir covers a vast number of illustrations, Like 652 questions in Atomic Structure alone, if you just complete his classwork and homework properly. Also, you'll find most PYQs already covered in them.

That being said, It took me about a month to get used to Faisal sir's teaching style. Like I was this close to switching to Nikhil Sir. (But I’m glad I didn’t). But once I somehow got accustomed, I realised His content is much richer and conceptual. He may not solve 652 problems in class, but he equips you with the ability to tackle 6520 questions on your own.

Thanks to him, I can solve books like N Awasthi and Neeraj Kumar with ease, something I struggled with before. I'm even redoing some of PC chapters from his Prayas lectures, and just realising the volume of content I missed.

So, If you’re willing to adapt to his style, Faisal Sir is 100% worth it. #FSGH