I don't think Alejandro should win based on his story, It's already been done, Nadia won BB5 UK for the same reason and apart from a few highlights like her Fag tantrum and involvement in Fight Night I, she only sat around and bitched alot. She also showed in UBB she wasn't exactly a sweetheart and the public didn't like her.
I guess the difference between Nadia and Alejandro, is that Alejandro is actually a nice guy, but Juan Pablo is also a nice guy, but reaaaaaally boring to watch, they don't bring anything new to the game.
I think the only interesting thing about Alejandro in the last week was when he said he likes Natali a lot, and that is all.
He is actually in my TOP5 of favourite contestants, but I'm still shocked about his HUGE popularity when he didn't do as much as Luz or Jesica for example