I'm assuming what you meant to write was UIC to UIUC. If you look here: http://www.pb.uillinois.edu/Document...tchar_2004.pdf
and go to the "public university to uiuc" page, you'll see that 19 students were taken from UIC in 2004, the most out of any of the in-state public universities (most of which had 0-8 or so). So it does appear they take more students from UIC than others, but maybe UIC students just submit more applications than anyone else. I have read somewhere on the UIUC website that technically they don't give UIC or UIS students preference though. (I'll try to find the link).
You have to ask yourself, assuming you are at a community college (?), is it really worth transferring to UIC to transfer to UIUC? Would your chances be THAT different? I still think your best shot would be raising your GPA (which might be tougher to do at UIC).
Are you aiming for a spring transfer then, or are you waiting another year? Good Luck!