I have a DiBellas, Firehouse, Mr Hero, Subway, Potbelly, Jimmy Johns, Charleys, and Penn Station all by my house and they all bring something to the table. I surprisingly am not even 200 lbs.
DiBellas- Great bread if its light on the oil. They put a good amount of meat on there too.
Firehouse- Its hit or miss. I have had a few good sandwiches, but have just as many terrible ones.
Mr Hero- Greasy AF, and can be disgusting. However, a Chicken Bacon Ranch w/ Double meat, might be the best hot sandwich here.
Subway- I will only go here if I lose my job and am short on cash...even then I may opt to make my own sandwiches.
Jimmy Johns- The bread is ok, but everything else seems just average. Its kind of like how everyone raves about the Indians.
Charleys- Has a few great sandwiches, but there is never enough meat.
Potbelly- See Charleys + $5
Penn Station- Solid sandwiches. Probably my favorite because of the consistency.
For those of you have said Melt. I highly recommend going back. The expansion has allowed them to take a little more risks with their monthly specials (Chicken & Waffles, Wet Hot Buffalo, and the TMNT Pizza Roll Sandwich). They also still have the Dude Abides, the Count of Monte Cristo, Cuban War Pig, chorizo & Potato. Dont forget to ask for a side of the chipotle ketchup.