I had a Commodore 64 because the Atari 2600 promised a keyboard option to turn it into a computer. It never came to market. So I switched to Commodore who had a video game console with a keyboard and BASIC.

The Atari 800 was nice I heard, but there was a war between Commodore and Atari users on the BBSES.

The Atari 800 had more colors than the Commodore 64, but the SID chip on the Commodore 64 had better sounds, which attracted musicians to it.

Oddly enough management of Atari and Commodore switched and the Atari ST was the successor of the Commodore 64, but I had the Commodore Amiga 1000 that was designed by Jay Miner and other Atari engineers.