XLRI is way no better than the other B-schools rather they all are the same. All these top B-schools(including IIM’s) are the same in all aspects ranging from the placements to the academics.
You will see students from different B schools comparing their institute with others and figures that they possess unique qualities but there is nothing of that sort. The top ten B-School in the country belong to the same league and you will enjoy more or less similar opportunities at these institutes.
Slight differences can be observed in placement figures, alumni networks - their global spread, and job roles. But that’s it.
So, to answer your question, XLRI is not better than IIMs, it’s not worse than them either. They belong to the same league.