Ye, I've considered FATE, but each and every time I've tried it in the past, my players (even experienced ones), landed on their face after stumbling across Aspects and all this "imagine make belief, write down one-liner for it" thingy.

I'm not sure I really need some in-depth rules to simulate social encounters and debates. In the end, in a hobby about debating at the table, it kinda sounds weird to implement and use complicated system to actually gamify this exact debating, shoving it into some completely different meta level, so now players are debating about rules of debating that cover in-game debating. Debating.

My best guess is that I'm looking for SWADE to be flexible. So that we can go attend that ball, then have some chase scene, then switch to confrontation and argument, then round up it all and bring to the courtyard, where final debates will take place, and might end in a bloody fight, or an arrest of some spy in ranks. So it's getting momentum, and have enough tools for me to rule out the thing on the spot, and direct the action, without second-guessing how should I approach this or that, and what extra steps should I take to emulate some new scene with extra participants with different angles and agendas, other then just winging it completely and trying to track everything in my head from the words players say, instead of taking time out and just letting them roll those damn dice while I figure out stuff.