Prefer syntax to create mutable ?

What should you recommend when working with mutable ? The traditional way or literal syntax way ?

NSMutableArray *mutableArray = [NSMutableArray array]
NSArray *array = [NSArray arrayWithArray:mutableArray]
vs
NSMutableArray *mutableArray = [@[] mutuableCopy]
NSArray *array = [mutableArray copy]

The same for NSMutableDictionary ( @{} )