I agree with Hammy for the most part but having learnt it is Knights old boys day I'm actually willing to say go for the Knights. I'm pretty sure we beat the Rabbits in a similar game last year.
You can look at it in different ways such as "Rabbits need to win they'll put on a big performance, Knights have nothing left to play for in regards to making the finals" or "Rabbits need to win - the pressure will get to them, for the Knights the pressure is off as they are not in contention for finals - they'll play more freely, its Newcastle old boys day". For me, I'd back the latter I think the Knights have a good chance, but Rabbits on paper anyhow should win.
Good luck with the flu. I'm just getting over my second bout (pretty sure the 1st bout was man flu) & I am positively over it.