How Does Taliyah Compare to Other Elemental Weavers?

Confessions of A Broken Blade mentions that the court house benches were shaped by wood weavers, implying that Taliyah is not the only Runeterran to shape the elements with magic.

-How does she compare to other Weavers?
-What elements can they weave—or be woven? -What is the history and status of Weavers in Runeterra?
-Where does their power come from?
-Are they all involved in prophecies, or just our little sparrow?