I've never been to Corcoran's or even heard of it before. I've been going to ISU game watches here for 9 years, how is that even possible? How many fans would you say were there for NIU? Fizz had about 50-60 fans and had the game on every tv but two small ones (pre-season Bears) and the sound on the game for the whole bar.
I had gone to the various Wrigleyville locations before Fizz. Old Town and Lakeview are both more convenient for where I live now than Wrigleyville though.
Don't want to disuade the original poster if Corcoran's is an incredible bar with all ISU TVs, 200 Cyclone fans and blaring sound, but I do know that is my least favorite neighborhood in the entire city to try to find parking. The area around Fizz has cheaper meters and you can find some free parking a block or two off the main roads. I wasn't at Fizz for the Iowa game because I went to the game in IC, but at the NIU game they brought out a few free pizzas for us too.