Consulting and FLDP are going to have very different lifes. I do have some friends who worked for ZS and then went to Kellogg. One I believe went back and got it paid for. ZS I believe is very quant heavy, from what I know that is their niche. You need to decide what is right for you based on who you are...not what some MBA board says.
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Kellogg Class of 2010...still active and willing to help. However, I do not do profile reviews, don't offer predictions on chances and am far to busy to review essays, so save the energy of writing me a PM seeking help for these. If I don't respond to a PM that is not one of the previously mentioned trash can destined messages, please don't take it personally I get so many messages I have a hard to responding to most. The more interesting, compelling, or humorous you message the more likely I am to respond.