The two has different advantages in terms of usage and comfortability, look when your having a travel you can't carry a desktop,instead a laptop can do. I still prefer for laptop because it's very handy and very comfortable in terms of usage.
I like having a desktop. It works fast, and I have it set up at a comfortable to desk to work from. A laptop would be fun to have because of it's mobility, but I think desktops usually work better for me.