They are getting more recognition.
I like the exotic sound of shhh... too. The new version of gimme gimme is better, yes.
My ranking is
0. xmas kiss
1. sync
2. bye Bye
3. shhh...
4. gimme gimme
By the way, a video of hikari live. I like the song, I think it's better than brand new day and it has a different colour but I have to say that is very generic. I'm still thinking that xmas kiss is the best ballad of them.