Which sexual "immorality" is worse?

-Consentual sex between parent and off-spring (any age)? 
-Consentual sex between siblings? 
-Consentual sex between cousins?
-Consentual sex between pre-adult/teen and pre-adult/teen? 
-Consentual sex between pre-teen and pre-teen? 
-Consentual sex between pre-adult/teen and pre-teen?
-Consentual sex between an adult (other than parent/grandparent/etc.) and pre-adult/teen? (Assume the pre-adult/teen understands sex and does consent--legality is not the issue here)
-Consentual sex between an adult (other than parent/grandparent/etc.) and a pre-teen? (Assume the pre-teen understands sex and does consent--legality is not the issue here)
-Consentual sex between an adult and an adult who are un-wed?

Again, legal ramifications are not at issue, only your own personal "morality" towards these specific pairings.

1. Asking for moral opinion + sex related issue + anonymous board + on the internet = ?

2. Orthographically correct sentence + reference to philosopher + egotistical display of technical terms + arrogant short capital/period sentence + on the internet = ?

3. Bold claim + outdated html satire + overuse of capitalization emphasis + more bold claims + on the internet = ?

4. Trying to second-guess anonymous posts on 4chan + unorthodox reply + eating asparagus + while masturbating + on the internet = ?

Les questions mes amis, les questions!