We love this recipe:
http://www.epicurious.com/recipes/food/views/Chicken-Chili-Verde-3012 and it is especially good with chicken thighs (tried it once with chicken breasts and it was good, but not great; with the chicken thighs, it's great).
Also, I use poblano chilis instead of green peppers. Canned tomatillos work fine and cilantro is really optional (I've had with and without and it doesn't add that much to this recipe). Instead of tortilla chips, we serve over rice. And instead of transferring everything to a pot for the stewing, I transfer to the crock pot and it works great, 2 hours on high or 4 hours on low (even better). Yum!