I've been taught several. The primary one I was taught was straight-in elbow to ear. The one I most enjoy is I think #3 by your description. But then I'm a mongrel so I probably do all of those here and there.
I pin with the arm as high as I can and still stay comfortable/balanced. I then rotate my hands (inside down -- outside up). Finally, I put a knee in the ribs to help keep the buggers from rolling out.
If all that fails I put my knee on their head and with a firm downward intention. Passed my 1st kyu test with one of those.