Except of course all the examples of Compulsion but Graendal's are nowhere this effective. Moghedien herself said it best: "pity it's so limited".

Even Graendal keeps most of her compelled subjects very close to her (it's strongly implied Graendal's subtle compulsion is fine work, requiring several interventions - she compares it to sculpture).

Moghedien's compulsion stopped working rather fast after she was not longer around.

Rahvin made the same mistake with Morgase. She was under her spell as long as he kept her close and worked on her a lot, but when he started to push her aside and she was left alone for long, her personality slowly returned.

Effective compulsion works on very primary psychology. Moghedien's order "Live!" is an example. Rhavin used sexual desires/seduction - he created needs which he played on after, before he got Morgase to do anything against her will. Her mental barriers came down because of her desire for him. He didn't compel her to do specific action, he had made her besotted and boosted her libido so she'd melt and agree to his (non compelled) requests.

That's one of Graendal's favourites as well, for subjects she means to send out of fortress. She makes herself the target of deep lust, play on the libido of her male subjects. She doesn't give them compelled orders, she "reshaped" them to accept any order from her, out of passion...

For Itulrade, Graendal played on his loyalty and friendship to the King. She didn't compel him to do anything specific, she boosted his loyalty, so he'd obey every order from the King, not matter how contradictory or stupid.

She compelled Farstrider to keep an eye on Sammael's pawns. He got distracted by the fact Mat (a ta'veren) was doing it too, and hitched with him in the end... He kept following the DF with Mat until they were caught or killed or escaped. Then with time even his compulsion to forget meeting Graendal and having been in the West started to unravel... and that's Graendal's compulsion, the best.

Egwene just doesn't fit the pattern. There's no evidence of any primary trigger Aran'gar has used. Egwene hasn't changed in any meaningful radical way through the Halima episodes. Very strong evidence Egwene was never compelled by Halima is the fact she merely liked the woman and no more, and even kept reservations about her. That doesn't fit the pattern of any compelled subject we've seen, who develop very strong feelings for their compeller (except Verin's, but what she does isn't true compulsion, and because she doesn't create this feeling of deep admiration/love/lust, she can't give any order the subject would oppose, she has to suggest to them to find their own motives to act: serve Rand wouldn't work, "find within you a deep motive to swear to Rand and when you find it follow it" did).