Hmm, I'm only familiar with the artists on the second half of your list, from Kagrra downward. I don't really listen to Skillet anymore though.
1. Lovelyz - 라푼젤
2. Icon for Hire - Pulse
3. Born of Osiris - Free Fall
4. MALICE MIZER - 破誡の果て
5. Juliet Simms - Before It Rains
6. Christina Grimmie - Without Him
7. BORN - Vermin's Cry
8. Aerosmith - She's On Fire
9. CLC - I Should Be So Lucky
10. Emilie Autumn - How Strange
This... is a strange list. I wasn't sure what to choose as my favorite, but then I remembered "Without Him" was the last song Christina ever sang before she died.