The One has stood the test of time the best, it's gloriously melodic, her vocals on it are lovely and it would have been so much more fitting as a return than 2 Hearts.

 

05 2 Hearts

09 Wow

07 In My Arms

10 The One

The One most certainly has aged the best and stood the test of time.

It is also a song Kylie needs to re-introduce on her tours again.

Based on performances, Wow appears to be Kylie's most performed song from the X era.

Wow is great live and I loved the version she did on the first Christmas show at the royal Albert Hall.

Wow and In My Arms are the main songs from this era that she performs on tour although Wow would have more performances.

Kylie appears to have moved on from the other singles here.

The One could easily be mixed in with another song just like the sublime Light Years/Turn It Into Love mix.

She did admit in an interview that she didn't want to release '2 Hearts', but the label forced her to.

That i did not know and i am in ways happy to see that Kylie felt the same as the fans.

 

I vote for The One.

Wow is also fab. In My Arms is good too.

2 Hearts , just no.

It would be 'Wow' for me.