Clone Syaoran. She fell in love with him, she grew up with him, she is willing to do anything to get
him back. She theoretically could have fallen for Real Syaoran by now, if he were the same to her, but he's not. He is not the same Syaoran to her. Though some think she could develop brand-new feelings for him as a new person, I think that's impossible, as his appearance acts as a bit of a hinderance in that. She would only be reminded of what she lost. Err... Just my opinion.
Then there's the quote from chaptire 122, Syaoran speaking to the clone:
"The fact that you consider Sakura over there most precious to you
doesn't come from my heart. It's from you!"
Keywords are in italics. I don't think he feels the same as the Clone did, for this reason.
Oh, and would those who call one Syaoran "fake" care to define "Real" to me? What makes one "real" or "fake"? What do you consider to be "real"?