Man of Honour
C64. The other two were badly made (I assume that those people waxing nostalgic over the Spectrum keyboard never had to actually use one) and essentially pretty poor. The C64 wasn't without its faults, but was still the best of the three.
Even though it was a technical limitation, I always liked the colour clashing for some odd reason, You could always recognise a speccy game when that happened lol

