We are having a mini xmas party here @ my work place,

anybody has any idea which place has better pizzas that cater delivery besides
1) PIZZA HUT
2) CANADIAN PIZZA

I found this on the website

Rite Pizza - http://rite-pizza.com/pizza.html
Rocky's Pizza - http://www.rockyspizza.com.sg/
Oishi Pizza - http://www.oishipizza.com/menu.htm
Sarpinos Pizza - http://www.sarpinos.com.sg/
Pizza De France - http://pizzadefrance.com/
Pelican Pizza http://www.pelicanpizza.com.sg/

any feedbacks?
cos i had never tried their pizzas before.
Also, any suggestions on where can I get good food for mini parties?