To be honest, Kellogg and Booth are both Top B-schools. Any of them is a good choice. please make a fitter choice based on your future career goal and your current experience.
vote for uc..used to love kellogg, but after visiting both schools, I changed my mind... plus, if lz wants to do finance,no doubt chicago, if lz wants to do consulting/marketing and is not currently in consulting/marketing, i think booth is a better choice.