I don\'t know if there\'s a limit to the number of characters if I choose nvarchar(MAX), and I\'m not sure how many characters I would need anyways.
What\'s the standard
The ntext type is deprecated, as are text and image. Microsoft recommends replacing them with nvarchar(max), varchar(max) and varbinary(max) respectively.
ntext
text
image
nvarchar(max)
varchar(max)
varbinary(max)
Use nvarchar(max), therefore.
Reference: