I used IBM computers for many years, last few years with Dell.
But then my hard disk crashed and I almost lost all my customer files, but a close associate was able to save most.
Next I decided to switch to Apple bought a Mac Pro and never looked back..
The Mac Pro was the easiest computer to learn on, and my tean was up on running in 30 minutes.
The nice thing about Apple is now U can run windows programs using as a virtual system as well.
Now I have added a couple of iPads, plus I carry a Mac Book Pro laptop small and powerful plus it get 22 hours battery life..

Just my $0.02... wink