Go with your gut. If you are having too much trouble, you could score each pro and con and then go with the one that has the highest score.
My two cents:
If the size is the only downside for HM, it sounds like you prefer it. Bear in mind that the seated dinner picture has no chairs and no guests sitting at them - maybe that's why it looks empty. You could always space chairs/tables out more. Then again, it depends on how it looks in person as pictures can be quite different from reality.
Its worth considering your budget. The cheaper option may be best to go if you want to save extra money or put extra money into other things such as photographer, flowers, dress etc.