For some weird and wonderful reason, my Raleigh 20. I used to deliver newspapers on it so I guess we went through a lot together! Crap handling though and definitely uncool at the time.
I wanted a chopper so my father, a sheet metal worker, made me one. Banana seat,ape hangers, 3 speed stick shift, painted a sparkly purple. It made up for the uncool 20! He ended up making a couple more to order.
I later had a 5 speed drop handled Raleigh; I guess that was my first serious bike and I used to ride miles for pleasure on that but my favourite has to be the 20.