Leverandon
I'm not that familiar with Jos A Bank. Is it above, below, or at the same level as Banana Republic/Ralph Lauren in terms of price/quality?
https://www.josabank.comComparable to Banana Republic, I think. Although I'm not very familiar with BR. I think BR is far too trendy for a top business school (for men). I think it works out well for the ladies.
Ralph Lauren has several different lines, and it depends which one you're talking about.
Jos A. Bank is comparable to the "Lauren" line that you would find at Macy's or something like that. i.e. approximately $200-400 out the door.
Ralph Lauren Blue Label is made by Corneliani and these are very nice, high-end suits that generally run in the range of $1000. They trump anything from Jos A. Bank.
Ralph Lauren Purple Label is sartorial clothing and will run several thousand. Comparable to a Brioni, Kiton, etc.