This is an excellent SE conference

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Next to ICSE this is the most highly rated conference in the field. It makes no sense to have it B-ranked.

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Clearly this is a A conference. It makes no sense to rank ESEC/FSE as B

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This is a top software engineering conference. It certainly deserves higher ranking.

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One of the top 5 conferences in Software Engineering. Why it is classified as B??

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ESEC/FSE is second only to ICSE in the field of Software Engineering (and a close second at that!). It should be an A* conference, just like ICSE. Furthermore, having looked at the data above used to rank ESEC/FSE as "B", I see that the google scholar ranking used is "Engineering/General", instead of "Software Systems": https://scholar.google.com.au/citations?view_op=top_venues&hl=en&vq=eng_softwaresystems In this ranking, which includes journals and conferences in Software Engineering and Programming Languages, FSE is ranked much higher, and is indeed the second Software Engineering conference behind ICSE.

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This conference is welcoming to new attendees such as postgraduate students:
Referees for this conference provide high quality detailed feedback:
The conference program facilitates networking:
There is a culture of interaction and feedback following presentations:
The conference is routinely attended by top people in the area:
Overall, attending this conference is worthwhile: