Difference between Hero Sandwich and Poor Boy

HERO SANDWICH vs POOR BOY: NOUN

A large sandwich on a long thick bun.
A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

A submarine sandwich.
Used other than as an idiom: see poor,‎ boy.
A sandwich originating in New Orleans consisting of meat or seafood, such as roast beef or fried oysters, and often lettuce, tomatoes, and condiments, served on French bread.
A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

Open sandwich, Cuban sandwich, Poor boy, Italian sandwich, Wedge, Torpedo, Submarine, Sub, Bomber, Hoagy, Zep, Grinder, Submarine sandwich, Hoagie, Hero

Sandwich, Italian sandwich, Hero sandwich, Cuban sandwich, Submarine sandwich, Wedge, Zep, Submarine, Hoagy, Torpedo, Grinder, Sub, Hoagie, Bomber, Hero

Club sandwich, Tunaburger, Sandwich, Open sandwich, Poor boy, Italian sandwich, Cuban sandwich, Wedge, Torpedo, Submarine, Sub, Bomber, Grinder, Submarine sandwich, Hero

Burger, Open sandwich, Tunaburger, Sandwich, Italian sandwich, Hero sandwich, Cuban sandwich, Submarine sandwich, Wedge, Submarine, Torpedo, Grinder, Sub, Bomber, Hero

The poor boy alone sat there without any plant to display.
Michiel needed 4 stitches and the poor boy screamed it out.
My poor boy, he was too good for this earth.
That poor boy was already close to the breaking point.
Regardless, I do feel sorry for the poor boy.
Oh, this poor boy had it for sleep apnea.
No one would take care of this poor boy.
GRANDMA: Oh Richard, let the poor boy relax.
Raising that poor boy all on her own.
Poor boy, rich child Mr Cohen was raised in a poor Jewish neighbourhood on the west side of Chicago.