I also ended up pulling the trigger on the regular size P3 Black 128gb on event day. I must say i was a little hesitant on the high price. Size wise the biggest phone i had was the 6P then upgraded to a P1 XL on launch, after a while the size got to me and needed something smaller to be comfortable. I was using a Pixel 1 for the past 6 months and loved the size. Side note, last year was the first year i didn't annually upgrade.
Looks like mine is coming in tomorrow with the standard shipping option. I ordered the Google Fabric case with it, i've read lots of praises with the P2's fabric case so i figured i'd give it a shot. As for tempered glass, i ordered 2 different styles on ebay ($11 for 3 total), one had the cameras and sensor circular cutouts and the other is cut short to avoid that area. I rarely ever had an issue with generic ebay tempered glass, i can't see how someone pays $20+ each in retail stores (ouch).
Ignoring the size, my coworker has the OnePlus 6, in my opinion the screen and build is very nice. I'll give the Pixel 3 a chance, but it's super tempting to go for the 6 or 6T at their price points and upgraded RAM. I'm just spoiled with the Pixel (gen 1) camera and going backwards is brutal. I attempted the iPhone X for a month this year and returned it based on the camera (lack of detail/patchiness with crops). It's insane how far Google is ahead of Apple in that aspect.