Welcome to the ranks aesir now you can be a douche like the rest of us and post personal messages in topics where you really have no place being in.
Links Fair kinda sucks. The more you use it the more it sucks. The less you use it, the more it rocks. My advice would be to get better at edgeguarding and placing sexy spin attacks so you don't have to Fair.
Allow me to clarify
Link's Fair has TWO uses.
1) Setting up for low percent combos
2) Getting opponents off the stage at high percents.
Getting better at edgeguarding and placing spin attacks (on the stage, not while edgeguarding) makes the Fair less of a necessity for #2 (killing stuff) so you can just stick to using it for low percent combos.
On the subject of edgeguarding, it depends on the situation, sex kicking is more effective but much more risky, and there are other options that you have to consider (edgehogging, dair, etc), as well as character, %, amount of time you have to get to/off the edge to perform the attack, as well as what you think the player will do.
Also quit being dix this forum is not for your lulz.