Not quite the War of the Roses but a not-too-serious comparison between Yorkshire and Lancashire . In the interest of fairness I am taking the pre-1970's county boundaries, so I'll include Liverpool and Manchester as 'Old' Lancashire . As little research as possible has been conducted, only simple fact-checking to make sure I haven't mis-remembered anything important.

	Yorkshire	Lancashire	Result
Countryside	James Herriot Country	Dark Satanic Mills	Yorkshire
Food	Yorkshire Pudding Pontefract Cake Wensleydale Cheese	Black Pudding Eccles Cake Lancashire Cheese	Draw
Beer	Theakstons Tetley Stones Sam Smiths	Thwaites Cains Boddingtons J W Lees Joseph Holt	Draw
Ye Olde stuff	York (except Jorvik which is a rip-off)	Err... some old buildings scattered around	Yorkshire
Fun	Scarborough	Blackpool	Lancashire
Big Cities	Leeds Bradford Sheffield	Manchester Liverpool	Lancashire
Films	American Werewolf in London The Full Monty Kes	28 days later The Parole Officer	Yorkshire (but it was close)
TV Comedy	Open All Hours Last of the Summer Wine	Royal Family Phoenix Nights	Lancashire

It's a dead heat so far so I'll get Google to decide the winner.

Google search for	Yorkshire	Lancashire	Result
"... is Great"	358	7	Yorkshire
"... is Crap"	2	0	Lancashire
"... is better than ..."	13	3	Yorkshire

It was close but it looks like Yorkshire wins on penalties.