About the looks Sakura and Real Syaoran were exchanging... as others before me, I don't think it was love. It's possible that R Syaoran loves Sakura (though I mostly got the feeling of compassion and sympathy from the way he looked at her in this chapter), and it's possible that she will grow to love him, but this is quite the wrong time for romance, no? Sakura has just lost what little security she had found in her feelings for Our Syaoran, she has little to no clue what's going on other than that her precious person is now a cold-hearted stranger... To me, that look she gave R Syaoran screamed confusion, not attraction.
... Which leads me to the reason Sakura decided she did not want her feather. Someone argued that even though she may not wish for more memories of Syaoran, neglecting those of her brother and other important persons in her life as well would be selfish, and since that is very un-Sakura-ish, she probably acted like she did out of compassion for the Tokyo gang. I disagree. I mean, her most important person has been taken away from her in such a cruel manner - I don't reckon she's thinking about what kind of memory it is that she is giving up; at the moment, she simply doesn't care about retrieving her memories, she's overwhelmed with sorrow. Who would want to continue after going through something like this?
Let's hope she finds it within her to carry on soon. Even if she is pretty helpless and bleak in TRC, I still don't want sweet little Sakura-chan to suffer (even though I agree with those who say this has made her a lot more interesting)...
As for the two Syaorans, sure, they probably share the same "basic" character, but we must keep in mind that what kind of personality a person has also depends on enviroment, relationships... R Syaoran has the clone's memories, but regarding someone's life isn't the same as living it - having a fairly normal upbringing, and growing up in a tube must shape people, no matter how alike, differently, don't you think? So even if R Syaoran might be like the Our Syaoran in some (or even many, or most) aspects, I still see them as individuals, not two sides of a coin. The clone hasn't got any personality whatsoever, so he doesn't count.