Many thanks for taking the time and effort to do this, as it really is great for those of us who could not attend in person!
I will add that I was initially underwhelmed by PP's offering this year; however your photos have changed that impression.
The 5960G dial is really bewitching - I would actually like to see that reference on a bracelet (for fun) a la the 5960 SS models...the black dial also looks great as well.
5168G looks very nice - I am curious to see how the extra 2mm feels in real life.
5170P is an elegant beauty and I do not mind the diamond markers. I think it would make a fantastic pair with a 5070P as the latter would add a whimsical charm?
5230G is definitely nice but loses some (minor) points as (in my eyes) it's also a model somewhat on the vintage/retro homage train that many brands are on these days (which is fine, but originality is much appreciated too).
5131P feels like Mr. Freeze. Crazy presence, and I'd love to know the weight.
Based on pictures I actually think the 5960 variants may be my favourites, even if manual chronos are probably my favourite complication...