Picking a favourite of anything is tough! Here's a few that I just can't get enough of:
Green Door (don't care what version, the Shakin Stevens one down the pub always does the job nicely!)
Man For All Seasons - The Eighties Matchbox B-Line Disaster
The Crusher (again, any version will do)
Into the Valley - The Skids
I know as soon as I hit the reply button a load more will pop into my head!!