Worthless Endeavor & Back Rows Burning
These sound like a bands to me. They would both fit most genres but Back Row Burning sounds like a hard rock or metal band to me because of the "burning" aspect.
We're Not From L.A. & Replace The Bassist
Party rock? With the Replace name, I think having a strong bass player would be key, either that or bass player/singer. Generally speaking, these are joke names that you'll probably start to hate very quickly.
First Name Bassist
Great play on words but you better be a damn good bass player to pull it off. Your music would definitely have to be very groove/funk oriented.
2nd Spotlight & Brighter Than Night
These two sound like band names, and they also offer a little more intrique and would lend themselves well to a progressive rock band.