TSQL - What is faster

Hi Experts,


This is more of an informational question

I have a co-worker that said that I should not:
Right click a table and take the option of: "Select top 1000 rows"
that it take more time to do this.

The co-worker said that it is best to:
just do new query and then type in your select statement.

But one would have to know all the columns in the select statement to do this?

So what approach is best?

Thanks for helping.