Problem if I try to sync photos to my iPad 3 64gb 4G. If I select some or all of my 7300 photos, iTunes either converts a few (9 to 15 pics) syncs them and skips the rest or skips them all entirely , the ones that do sync look stunning on the retina screen though.
I never had this issue with my old iPhone 3GS, iPhone 4 and my current 4S or my iPad 1 & 2.
I also tried deleting the photo cache multiple times, restoring the iPad 3 from an iCloud backup as well as a slightly older backup through iTunes, I even reinstalled the old iTunes 10.5 and I still had the same photo sync issue.
Yet my iPhone 4S 64gb is syncing my photos through iTunes via a cable & WiFi just fine.
I even tried copying all 7300 photos to an external drive and syncing them from there, hoping a completely different location may work. Managed 150 odd shots before skipping the rest, this problem is completely random.
Out of those shots a few were the wrong image, the thumbnail image was right but when opened full the image was from a completely different folder
I even tried this morning setting my iPad 3 up as a new device instead of restoring from iTunes or iCloud, synced only my photos and nothing else but I had the same issue so this is definitely a bug somewhere, I suspect iTunes.
Again, same photos and I have no issue syncing 7300 shots to my iPhone 4S.
Everything else syncs to the iPad 3 just fine and runs perfectly.
I have the exact same photo sync issue with the new IPad also.
I have tried many solutions just like all of your suggestions, but have not been successful.
Seems to be an issue with the use of larger photo sizes for the new high resolution iPad.