For a checkbox group field definition, they are displayed inline with awkward
formatting. Perhaps an option to display as a list, and one to hide the numbers
in the label.
So instead of 
[ ] 1. - Foo[]2. - Bar[]3. Foobar
it could be
[] Foo
[] Bar
[] Foobar
This could also use the columns field so instances with lots of options could do
a 3-column checkbox list, for example.