We scored some belters in Challenge Cup Finals which are imo up there with that Offiah try,

A few that spring to mind,

The Hanley one against Halifax where we go full length from the kick off
The Hanley one against Saints in the 27-0 where he goes through about 6 of them.
Henderson Gill in 1985
Joel Tomkins against Leeds in 2011

McIlorum against Leeds Magic 2014. Massive try.

The two at Twickenham weren't bad.

Scored in the latter stages of the game when after trying to play Rugby Union and getting battered, the team decided "sod this for a lark", played Rugby League by throwing the ball about and scored the best two tries of the game.

Our second try in the 2010 GF. Back when we had the confidence and pace to spread it wide even if in our own half.

I have the distinct memory of turning to my brother and saying 'we're bloody doing it!'