Most Helpful Guy
Hot Water Music comes to mind-- check out the song Drag My Body. They are a rock band, and they make some great music, and sound great live too.
Animals as Leaders is the most underrated band I can think of. They are instrumental djent, and holy crap, there are pretty much no covers of their stuff on youtube because it is THAT hard to play. Check out "On Impulse" if you are interested.
Most Helpful Girl
Brandi Carlile, Shiny Toy Guns, Ivy Quaynoo, Liz Longely, Agnes Obel