Okay, yeah, I was sad when Aeris died, too, I will admit. And although that article had some merit (Aeris really was a little too much by getting Cloud to be her bodyguard in exchange for a date) - but I don't completely agree with it.
I mean, Tifa only wanted Cloud once he was in her life again (and I felt that was sort of because Cloud was the only thing remaining from her life thus far - her "constant").
Then again, now that we've seen Crisis Core, Aeris was pretty much reliving her experience with Zack.
But then again, in an official short story of Aeris thinking about her life (post-death in the Lifestream), Aeris explains that she really TRULY felt feelings for Cloud. It wasn't just because he reminded her of Zack - it was totally different.
Cloud should ditch them both (well, he already ditched Aeris) and go with Elena or something.