I would have to say Cleveland...:
The Cleveland Flats Waterfront Festival will have fireworks at 9:45 p.m. Friday, shot from where the Cuyahoga River meets Lake Erie. Festivities start at 6:30 p.m. with a Sousa band, giveaways and refreshments.
...or Akron

...:
The Akron Symphony Orchestra performs at 7:30 p.m. Sunday at Lock 3 in downtown Akron. The concert culminates a four-day "Rib, White & Blue" food festival with musical entertainment. A fireworks display will be at dusk Friday on the Akron Innerbelt.
Here is a complete listing of fireworks in NE Ohio:
Cleveland July 4th Activities - Cleveland Independence Day Activities