That's a good point about "Love" being the source of Anakin's tragic flaw. As Yoda pointed out, it was his fear of loss that evolved into greed that eventually led Anakin down the path of the Dark Side. I think he also had another flaw which ran with this: Hubris.
Anakin was powerful (arguably one of the most gifted Jedi). His abilities came quickly and easily to him and he started feel as though he was being held back from unlocking his full potential. He was supremely arrogant and prideful (facing down Dooku alone against Obi-Wan's warnings, believing that he could use the Force to stop death, being upset at not being made a Jedi Master by his early twenties) and felt that he was greater than the other Jedi and that they were becoming only an obstacle to his desire for more power.
I think his fall was facilitated by the self-deluded notion that, with his power, he could control his destiny and "make things the way he wanted them to be". Instead, his hubris was only responsible for causing the very thing that he so desperately sought to prevent.
HARRY DRESDEN — WIZARD
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