Dell
For me at work is a good spec Dell desktop system, with 3 monitors for (mainly) Photoshop design work, for travel/home is a Dell Latitude 11 tablet, which mainly is used in laptop mode with the battery keyboard - serves me well for my needs - couldn't imagine actually trying to use IOS for actual work - it pains me enough trying to use it on the odd occasion I need to used my wife's iPhone.
(I run a design company, so art work have a few Dell desktops with 3 monitor set ups we could call "mine" along with a few staff on Dell Venue/Latitude 11s too)