If you really want to know the top 10 best desktop read this.Top 3 will have infomation.
10.Dell OptiPlex 7440.
9.Lenovo Yoga
8.Hp Pavilion
7.Digital Storm Aura
6.Hp Envy
5.Oringin Omni
4.Microsoft Surface Studio
3.Imac
You can buy at the apple store for £1049. It was the best desktop in the world in 2015.It can come in 5k screen.You can play MOST games, but in some shops like Groupon you can get it for £319, but not much storage.
2.Dell xps
It has really really good sound as it has massive speakers.
1.ASUS Zen Aio Pro