Acorn for me - I still have my BBC Model B somewhere in the loft...
z
Acorn - Atom, BBC Micro A & B, Electron
Amstrad - CPC, PCW
Apple - Apple II, Apple IIe, Apple IIc
Atari - Atari 400, Atari 800
Commodore - Commodore PET, VIC-20, Commodore 64, C128
Dragon Data - Dragon 32, Dragon 64
Jupiter Cantab - Jupiter Ace
Oric - Oric 1, Oric Atmos
Sinclair - ZX-80, ZX-81, Spectrum
Tandy Radio Shack - TRS-80, TRS-80 Color Computer, TRS-80 Model III, etc.
Acorn for me - I still have my BBC Model B somewhere in the loft...
z
None of the above I'm afraid Matthew :-(
I only had a Sinclair Spectrum, but didn't find it very useful or impressive, so I couldn't call it a favourite. Sold it after a few months when they were the 'big thing' for Xmas, and I had people begging me to sell it to them for more than I paid!
After that there was a break of quite a few years until I really got into things with MS-DOS PCs.