Hopping Down In Kent - that one gets my vote
Rochester Recruiting Sergeant - written by Pete Coe, a good alternative.
Deserter From Kent - seems a bit too simple for my tastes.
Folkestone Murders - dark deeds. Too dark for an anthem.
Not in digitrad but worth mentioning is Men Of Kent:-

MEN OF KENT

If you're wanting me on Monday, then I won't be there
I'll be bound off to Maidstone afore to see the fair
With me pockets full of money and a heart that's full of joy
There's many a thing in Maidstone to please a country boy

CH> So come all you jolly fellows to Maidstone we will go
Never mind the weather, be it rain or be it snow
We'll sport and we will drink my boys 'till all our money's spent
And we'll prove to the world my boys, we're all Men of Kent

If you're wanting me on Tuesday you know where I'll be found
I'll be down by the alehouse that's on the edge of town
A-drinking of the Kentish ales to drive away the dust
And eating of the finest foods until I'm fit to bust

If you're wanting me on Wednesday I'll tell you where I'll be
I'll be down by the Medway, fair maidens for to see
I'll pick me one that's handsome and likes a bit of fun
And I'll relieve her of her maidenhead before the day is done

On Thursday and Friday I'll be drunk as I can be
With all my friends around me, as far as I can see
With a wench a-sitting on my knee and a tankard at my lips
And the beard that hangs beneath my chin a-soaking up the drips

Now when the fair is over and I have had my fill
I'll make my way back home again, I'm feeling rather ill
And to my home and farm again my weary legs I'll steer
And start saving up my money to come back again next year

So come all you jolly fellows to Maidstone we will go
Never mind the weather, be it rain or be it snow
We'll sport and we will drink my boys 'till all our money's spent
And we'll prove to the world my boys, we're all Men of Kent

Might as well do a "lyric add" huh?