Honestly it's probably aley7c00jec8dew1b (I'd link it directly but the word filter is a butt) - acknowledging Sakuya's time-stopping abilities is already good, but it's pretty inventive on top of that.

I guess I have quite a few favorites, here's one: 【時間停止 time stop】疑心暗鬼 「Gishinanki」by akomni - fast paced and good facial expressions. Tray Mendis (who made the Sakuya & Meiling one posted above) even made a comment praising it.

(for anyone else having trouble with the word filter, you can use a relative link like ../../videos/naydluoogul9jlpm to link within iwara.tv)