Where should 'The Twilight Saga: Breaking Dawn' films split take place?

'Breaking Dawn' by Stephenie Meyer - Hachette Books

Now that the concept of The Twilight Saga: Breaking Dawn being split into two films is more than mere speculation, one discussion left lingering around is: where will the film split be most appropriate for these two projects?
Wyck Godfrey, who will produce the projects (as he has with Twilight, The Twilight Saga: New Moon, and The Twilight Saga: Eclipse before), gave a little bit of insight as to where the filmmakers are at in this very conversation when he presented the idea of making the first film 2-D and the second 3-D - with an emphasis on Bella's experience as a vampire for the latter. In other words, the wedding, Isle Esme, and Bella being with child would be the crux of part one, while part two would focus on all of the new characters, experiences, and show-downs brought forth in Part III of the book.
Most fans seem to agree that the childbirth/transformation area is a suitable stopping point range, but there is still some disagreement as to the exact moment it should happen.
Some suggestions for the moment have included:

• Bella opening her new, red eyes after her three day incapacitation with a fade to black to start up her vampire experience in part two at the same point;
• A pan to Jacob's face as he first lays eyes upon Renesmee (though not showing Renesmee so as to save her image for a part two surprise - or, in more practical terms, to avoid any problems with the actress aging if there is any time lapse between filming the two);
• Having Bella's vision and heartbeat fade out as it did just after Renesmee is rescued from the womb in part one and then having Edward rescue her for the beginning of part two;
• Subtracting the entire birth sequence altogether and having Bella begin to go into labor in part one with a "to be continued" and a montage of subtle, non-graphic, and perhaps blurred or quickened clips of the delivery as the beginning of part two; and
• Having Jacob overhear the room's goings-on rather than us actually seeing them, and having his expressions and words close out the first film.