Well it's basically like Chance no Junban was a b-side type song (like Kimi no koto, Boku dake, Guuzen no, etc.) And they had the more interesting songs for B-sides. Honestly I think they played it safe because there were ~unknowns~ in the senbatsu. And Japanese people seem to like cutesy songs.
Anyways enough about CnJ that's so last year who's excited for the awesomeness that is Everyday, Kachusha!!!
I AM!
I'm just starting to get into SKE, I don't think I'll check out NMB for a while. I like more 'grown up' singers. NMB is too young.
All you have to put for Yuko and Sae is:
THEY ARE AWESOME.