I would choose maybe hoffman estates, you are 40 minutes from rod's reef, 20 from ocean's floor, 15 from exotic aquatics, minutes from aquarium adventure(petco), minutes from beyond the reef, 30 minutes from shotank and sea schor, and there are like probably 5 others within 15-20 minutes....if you stay in geneva, you could take the train to the city and drive to the LFS's, if you stayed in geneva, on the day you visit LFS's, i would suggest rod's reef, then to exotic, then ocean's floor, then over to sea schor and sho tank, then down to the LFS's in the schaumburg area, then there is another in elgin, then back to geneva....(big circle)