1?22
Warlock Punch
Warlock Punch seems to be the best option for its KO potential and super armor. While Warlock Blade does have the increased priority, it lacks the power that Warlock Punch offers, and it has to be sweetspotted to be effective as well; no sweetspots needed for Warlock Punch. Warlock Thrust is practically useless, so don't bother using it at all.
Flame Choke
Flame Choke customs come down to preference. Flame Choke can't KO without follow-ups, but its range is decent. Flame Wave can be quite lethal if it grabs anyone, but its range is shorter, and that power doesn't give you any follow-up options. Flame Chain deals multiple hits and doesn't cause Ganondorf to fall off ledges, but it can trigger Counters, which makes it an awful choice against those with Counter moves (Ex.: Marth, Palutena, Shulk).
Dark Dive and Wizard's Foot
Dark Fists and Wizard's Dropkick are quite obvious, as the former is much more powerful on offense than Dark Dive, and the latter offers better horizontal distance than Wizard's Foot whenever it's used in the air. And of course, Ganondorf's recovery receives a big improvement by those two moves, since without them, his recovery is normally quite poor. There's literally no reason to NOT use Dark Fists and Wizard's Dropkick, since Dark Vault and Wizard's Assault are just worthless as a whole.