I had Bonchon for the first time about two months ago. Really good (got the half & half sauce) and crispy, but not as crispy as I've heard it should be. I just found it to be a little too expensive (15-piece combo with just waters was nearly $40 after tip).
Angry Chicken and Funny Plus in Aurora have gotten rave reviews. I'll head up there next time I go on an H-Mart run.