Annie - I would definately open it up to everyone. That way you can be open to any potential buyer.
After working with builders for 20 years, I can tell you a prime developer/builder for this land would be a smaller individual rehabber or construction company who are looking for inexpensive properties to improve. If permissable by the town, this could be two homes for them, so that is attractive.
Here are some things to consider. Of course, pricing is key. For developers, it has to make sense for them business wise. It is going to have to be a great deal and you are competing with distressed land on this. If there are already newer properties in the area, that is great. It also depends on the value of the surrounding houses and the potential development in the area.
I don't know if you are by the hospital, but sometimes those areas are more attractive for rehabs or tear downs. I would be happy to give you more information on this or list your property on our website for FREE.