Your 3 favourite Nokia devices. Easy enough – the 2001-looking 6230. The 6230i put in a better camera but let carriers cover it in placky silver gubbins, when it was a piece of classic European product design. The N73, intended as a smartphone but which was at its best as a camera. Mine had the 3UK patch-into-Skype feature, which was cool even if it didn’t work very well. And leading the way, the best thing they ever did, the E71. Not only did it work, it was beautiful at it, and if you were really masochistic it ran Python (including in an interactive interpreter).
9000i, 6510, 7110. With an honourable mention for the 502/503 of course.
They were dead in the water long before the Ns or Es came out.
6310i. I still use mine, and have parts from four broken ones that should keep it going.