1. Does every Chinese regard this festival as the most important?
I think so. This is one of the traditional Chinese festivals. It's celebrated everywhere.
2. What other festivals are there in China?
There are the Lantern festival,the Dragonboat festival,Mid-Autumn festival,etc?
3. Is there a difference between the ways that people celebrate the festivals in the past and at present in China?
Sure.The living standard in China is higher and some families go out to have a party in restaurants during the Spring Festival,which was very unusual in the past.