Engagement ring recommendations?

[Lane03]

I had decided on the BGD Tiffany style ring, but have since discovered that the fiance to be prefers a ring with a few smaller side stones. I have found these 3 that I think she would like, but wanted to see which one people here preferred, or if anyone had any other suggestions? The only negative with these 3 is that they are all 4 prong, and I would really prefer a 6 prong. I am sure she would be happy regardless, but I like the security of the 6 prong and find that the 4 prong can give the round diamond a slightly squarish shape. I already have the center stone, so I am just looking for settings. If I go with Whiteflash I would need to find a local jeweler to set it for me as they wont reset my stone without a GIA cert.

http://www.whiteflash.com/engagement-rings/diamond-settings/rounded-open-cathedral-diamond-engagement-ring-626.htm
http://www.whiteflash.com/engagement-rings/diamond-settings/legato-sleek-line-pave-diamond-engagement-ring-422.htm
http://www.briangavindiamonds.com/engagement-rings/pave-and-side-stones/the-valentine-micro-pave-1-18k-white-gold-5688w18