Actually, of the three, I find Cueshe to be the least appealing - in the sense that they could do with better imaging and songwriting. I personally find 6cyclemind to be the best in terms of pop songwriting, and as for Sponge Cola - very unusual lyrics and arrangement; I don't know if they want to be alternative, pop or rock. so of the three, Cueshe needs the most work, as 6CM knows their audience, and Sponge Cola is actually gifted - they just need to focus more.