Very similar to the Ganondorf match-up in that all of his approaches are very punishable by Zelda. However, while dtilt is safe for poking, the range is very short because of the low reaction time required I wouldn't advise forcing Falcon to approach from there using it.
Play projectiles and zone with fair and bair to force an approach when he's below safe Din's range. I believe that ^B to reset spacing (not to attack) is safe in this match-up but don't quote me I don't quote me on that, I don't have FW's frame data.
Overall, 70-30, while she doesn't really have the poke, Zelda's defensive options and zoning more then make up for it in this match-up, she can effectively force an approach just fine, and her punishing options are more then sufficent to consider this a hard counter, especially because of her priority issues (lack thereof).
Err ganondorf is pretty even with him
otherwise every other character dominates the falcon
Eh, not really.
Ganondorf pokes smartly and Falcon is forced to approach, in a match-up where every approach is punishable (even the auto-canceling ones due to lack of range/shieldstun). Add that to the difficultly of countering a predicted dtilt (you have to be exactly right because of Falcon's low short-hop and how high Ganondorf's dtilt extends) and Ganondorf's good punishing and edgeguarding games and it's really not close to even.