Hi Every Body!!!!

I feel that this site is very useful & everyone is very kind.
I will visit Guangzhou alone and maybe, will arrive at airport 11:00PM.
So I need some informations and I hope somebody to help me.
My questions are
I should go to Dong Fang hotel, Liuhua Road. How can I go to there?
Someone said that I must use airport shuttle bus number 5, and get off in Jinhan Exhibition Center.
I wonder how far from Jinhan Exhibition Center to Dong Fang hotel.
Is it short distance enough to walk to Hotel?, and is it safe?
Which one is safer between the Bus and Taxi?

This will be my first visit.
Please help me!!