Yes, I am 21 and am biased toward the ACLU. I do admit that they have a view of the Constitution that is not infallible and not free of bias. However, I strongly stick to my claim that the ACLU takes cases on a less ideological basis than the ACLJ.
On their website they list major fields of their work. These headings are
Churches & Orgs
Education, incl. Creationism and Bible curriculum
Equal Acces, all of which pertain to religious use
Free Speech, incl. proselytizing
Land Use & Zoning, spec. churches
Patriotism & Religion, incl. display of decalogue
Prayer, incl. prayer in schools
Students Rights, all of which pertain to religion
Workplace Rights, all of which pertain to religion
I see 14 issue headings. I'm going to give the benefit of the doubt and say that since I did not initially see religion explicitly tied to any of these, that Judicial Nominations, Marriage, National Security and Pornography are not related to religious (specifically Christian) issues. That still leaves 10/14, or 71%.
The ACLU offers a similar list of 20 important issues it works for. As I fully claim my bias, I recuse myself from examining those. But I challenge anyone to find a more clearly ideological basis than is displayed by the ACLJ.