In October, I went to Bugis to get some stuff for my Melbourne trip and decided to try the Ramen restaurants at Iluma. I have read about them competing to be the Ultimate Ramen Champion - the winner will get to set up a shop in Iluma.
The concept is like 'Marche' - you get a card which allows you to order from the Ramen restaurants and then pay at the cashier upon exit. I cannot recall which one was recommended so just randomly chose one - Hakata. It was quite tasty, I remember (it's been a while since I tasted it :P) The soup base must be nice because I finished it up! Was a bit surprised at the thin noodle (a bit like our chinese thin noodles :P).
Discovered quite a few blogs about it so you can check out their previews too!
http://foodiefc.wordpress.com/2011/07/17/tetsu-ramen-champion-iluma/
http://www.hisfoodblog.com/2011/07/ultimate-ramen-championship-2011-iluma.html
http://ramenwalker.blogspot.com/2011/07/bario-ramen-champion-iluma.html