cyinne pretty much summed it all up for you. There are a number of good options, with very few of them being affected by Arena/Canopy Street construction. Here's my two cents:
The Best: Lazlo's, Bread & Cup, Ivanna Cone, Vincenzo's, Misty's
Pretty good: Dozo, El Potrero, The Oven
Too expensive for your own good: JTK, Dish
Overrated: Brix & Stone
Other: Old Chicago, Applebee's, Noodles & Company, Five Guys, BWW, Chipotle...
For the record, Runza's food is pretty good...the Runza's themselves are not much to be desired. Too much bread and they fall apart too easy. When I tell people Runza (restaurant) is good but the Runza (food item) is not, I get nothing but the old fashioned "...well, you're originally from Iowa so you wouldn't understand" line.