What are your top 3 favorite things about the iphone 12?
Omg! It has the fastest smartphone chip, great internet speed because it can run a 5G, and the display is retina.
Is 5g really that much better?
Well is faster and transmits data at a very high speed. It is better I think. Will you give it a try? 
I think I may be interested, but what about the cameras on the iphone 12.. are there really more than 2?
Yea, there is additional camera to the usual two camera on the iphone 10. Now you have three cameras which makes self videos and selfies more easier and better.
Is there a panoramic setting on the cameras?
Yes, it is more present with the pro-max.
Sounds like a really great phone.  I am quite surprised. Sounds like you really like it too.
I do like it for sure, the battery life and the screen size is  doing the magic.