2What is the sourest food you've ever tasted?
3 What is the spiciest food you've ever eaten?
4 What is the most colourful fruit in your opinion?
5 What is the saltiest food you've ever tried?
6 What is the juiciest kind of fruit?
7 What is the best place to eat in your town?
8 What is the most expensive restaurant in your town?

2 the easiest 
3 simpler than
4 as difficult as 
5 the most important 
6 as sharp as 
7 more practical than
8 better than
9 much easier than
10 the most memorable