I have been working with T-SQL in MS SQL for some time now and somehow whenever I have to insert data into a table I tend to use syntax:
INSERT INTO myTable
I started wtiting SQL on ORACLE, so when I see code without INTO it just looks 'broken' and confusing.
Yes, it is just my opinion, and I'm not saying you should always use INTO. But it you don't you should be aware that many other people will probably think the same thing, especially if they haven't started scripting with newer implementations.
With SQL I think it's also very important to realise that you ARE adding a ROW to a TABLE, and not working with objects. I think it would be unhelpful to a new developer to think of SQL table rows/entries as objects. Again, just me opinion.