Ace Trucking.
IMHO one of the top ten strips the prog has run.
Any strip that allows Belardinelli the opportunity to go full on Massimo is always going to be a winner but the Wagner/ Grant scripts push it up another level.
Personal favourite: The Evil Blood trilogy. "Strike!" gives us a rare 2000ad story totally driven by the characters and has some great moments because of this. The following tale, with Ace making his misguided decision, was an effortless switch from comedy ( his final revenge on Jago Kain) to properly heartbreaking. One of 2000Ad's greatest moments in almost 45 years.