can't go wrong with Two Tongues, seeing as it's the fusion of two already popular bands (Saves the Day and Say Anything)... and i definitely agree with Good Old War.
Leathermouth is not bad, considering it's the guy from MCR...
and i don't know anything of the other two bands...
Fake Problems is great. It's like Against Me! meets a folk group. I found them on the Murder By Death tour and they are great. Really check them out. What a great list.