SAT/ACT/Subject Tests scores are optional on the Common App. You can list them all, none, or some.
In order for the Subject Test scores to be considered in the admissions process, however, an official score report must be sent. As to which colleges will require all scores, you will need to look on their sites or contact admissions. Very few colleges require all Subject Test scores, but there are some that do[/ require them all.
You can look at the below thread for a start, but verify with the colleges.
http://talk.collegeconfidential.com/sat-act-tests-test-preparation/1912440-must-you-submit-all-sat-act-or-sat-subject-test-scores-p1.html
Definitely not the 2. The 3’s are up to you, but I probably would not.