My Logic:
I think that desktop is better.Because,Desktop give us a better performance and it is cheap.But,Laptop is expensive and laptop can't give us a good performance better than desktop.For gaming desktop give us a better performance.I use desktop for gaming,professional video editing and work at steemit.So,If you wan't to buy a gaming laptop.That is very very wrong.You should buy desktop for getting better gaming performance.
At last,I want to say you that If get some help for this post than follow me and upvote my post for getting more help :)