Both engines have their strongpoints and whatnot and both have VERY passionate communities; No doubt this week, We’ll see a lot of cross-talk about the engines on here and I assume they will have some over there as well.
All I suggest is everyone respect other peoples views, Enjoy the debates / discussions but most of all: Don’t take it personal!
We’re all unified by one goal here: Video-game development (Well some of are here for Archvis / Film production / Education stuff .etc but you get the drift!)
You’re free to discuss the benefits of both engines, but please keep it civil! 
Have fun, Don’t throw abuse and everyone will get on swell!
There’s no need for “X engine is better” posts either!
As I said, We’re all here for a single purpose at the end of the day and if you’re taking posts personally then I suggest you go and do something else for a bit, cool off and come back with a cool head; Nobody is out to attack anyone personally, People are just excited and feel a sense of pride and ownership over their preferred engine of choice.
You all probably know all of this, but people tend to forget when they get caught up in their debates.
Have fun and keep it clean everybody