My first was a Commodore 64, while in college in the early 1980s. Not a bad computer, but the power supplies were often junk. Commodore had a bad batch that failed, passed unregulated voltage and fried the computers. They replaced mine under warranty twice but refused after that, and Commodore soon went bankrupt.

After that:
Tandy Model 100 and 102 (I still have the 102 and some accessories). Handy for journalists back then.
Franklin clone of an Apple, a hybrid between the Apple II and II+. I used that through most of college after the C-64 failures.
An early Kaypro desktop PC clone that wasn't bad at all.
A bunch of early Macs, from the SE through some early Power Macs.

The Color Classic was my favorite. That beautiful little Sony aperture grille CRT. A charming little bit of industrial art, like my old iPhone 4s. I added every available upgrade and managed to keep it useful even for web browsing until around 2004. Kinda wish I'd kept it but I finally donated the Color Classic to some thrift store where I probably languished until being dumped.

I finally settled on generic PCs by around 2000, mostly because an uncle gave me some excellent photo editing software and it made better economic sense to switch hardware than buy the same stuff for Mac.

But if money was no object I'd be using Macs and iPhones, mostly because I appreciate the thought that goes into the design. But with my budget, pragmatism rules. I was on the verge of buying the iPhone SE 2020 recently but got the Motorola G Power instead. Hard to argue with the value and extended runtime per charge of the Motorola, even if it ain't sexy.

My iPhone 4s hardly holds a charge for a full day anymore but I'm keeping it as a relic of a sort of milestone in industrial engineering.