Leeds have played in a European Cup Final and been Champions of England within living memory.
They dwarf every other team in Yorkshire put together.
Think Leeds struggle to dwarf Huddersfield never mind the rest of Yorkshire ...
for the record:-
Blades FA cup winners x4, Champions of England x1
Huddersfield FA cup x3, Champions x3
Snorts FA cup x3, Champions x4, LC x1
Bradford FA cup x1
Barnsley FA cup wins x1
Dirty scum FA cup wins x1, Champions x3, UEFA cup winners x1, Fairs Cup x2, LC x1 (all bar one in the Revie era)
They probably are the biggest club in Yorkshire (as they should be given they're a one club city of 3/4m), but they're not in the same league as the really big hitters in the country Man U, Liverpool, Arsenal, Spurs. Pre-Revie Leeds were no great shakes and this century they've spent most of the time outside the top flight. I also remember the mid 80s when they were getting really poor home attendances.