I agree fully but I think Obito had good chances with her. Imagine he'd have returned to Konoha, badly injured. They would have taken care for him for a long time, regarded him as a true hero. But he never had a chance to choose. He got manipulated and used, just like Sasuke. How sad to be an uchiha.
What I really think about these 3-people constructions is that they are a mere crush-type thing. If people in the manga get older and more mature, the constellation might change fully. I think Sakura might love Naruto one day and Rin would have loved Obito but I fully agree that in the past, the situation of the 2 teams was alike.
There are two differences though:
1. Naruto wouldn't fight Sasuke because Sakura likes him. He would fully accept them being together. Sasuke means as much to him as Sakura if not even more. People here call it 'gay', I call it a strong emotional bond. Naruto can live with Sakura as a friend only if Sasuke would come back and be his friend again. No problem.
2. I just don't want to see Kakashi as another 'Sasuke'. Was he an ******* as a teenager, probably yes, to a point, but he didn't go that far because his suffering wasn't as big.
