90 is my first choice (certain times of the day), when continuing on to 94 toward Wisconsin, tolls are limited to 2.  If you can hit it between 9 pm and 6 am, you won't even take your foot of the gas.  The view to downtown from the south is very impressive.  During the midday hours, its not too bad, very crowded, but moving along.

During the rush, we take 294.  You pay the troll 5x and they have upped it this year (total being in the $8-$10 range).

Once past I-65, you get a feel for how busy its going to be.  If it doesn't seem busy there, you can make a judgment to take 90.

94 from the WI border down has been reconstructed and traffic there now seems to move along very well.

Gas prices between Valpraiso, IN and Gurnee, IL jump a quarter to $.40.

-YB