What are the various alternatives to typeset acronyms that contain lowercase letters, lowercase letters and numbers?
For example, take the acronym SOA4All. The naive way would be to typeset it just like that:
SOA4All
This is not really nice, of couse. A next step is to introduce small caps:
{\scshape soa}4{\scshape a}ll
Slightly better, but the number doesn't blend in all the well. We could add old-style numerals:
{\scshape soa}\oldstylenums4{\scshape a}ll
This is kind-of OK, but the 4 is really low now, and the small ls still stick out.
Here they are all together:

Which alternatives do you see and what would you recommend?
