100% Dell
I dont have my own servers, but for my PC and Monitor it is Dell all the way.
19 years ago i got a Patriot PC from a well know retailer in the UK, in 12 months i had engineers out almost monthly due to issues, so in the end they refunded me along with some compo, so i decided to go online any order a PC from Dell as you could configure to suit your needs. This PC lasted me 10 years before it was uneconomical to upgrade further, so went back to Dell for a replacement which i got in 2008. only issue was 3 years ago i had to replace the power switch, but recently its need to be booted 3 to 4 times to bring up the login page, so i have just ordered another PC again from Dell ( only thing i noticed is you dont get to configure them as much now), but i dare say this one will last another 8 years at least.