Why do you use a can opener?
To open a can.
What kind do you use, electric or manual?
Either will work. It depends on circumstances. If the electricity is on, it's easier to go electric. Otherwise, the manual will do just as well to get the job done.
There are many ways to get a book published. Which method works best for you depends on your circumstances.
If you can get to a conference and pitch or if you can win a contest with the prize being an editor, agent or publisher reading your manuscript, the process will go smoother.
If those options are not available, you can still rely on the tried and true methods of following guidelines and submitting a query, proposal or partial, depending on requirements. If you're talented and fortunate, you'll advance to the next round, which is submitting a full manuscript.
I'm going the electric route this weekend at the Love is Murder conference, where I'll pitch to editors, agents and publishers.
What about you? Which do you do? Go to conferences and pitch? Enter Contests? Make snail mail submissions? Or all of these?