What issue will the most influence your vote for the 2008 elections (including during the primaries, should you be able to vote then)?
If all issues are important to you, vote "I like" only for those issues that you think are most important. Vote "I don't like" for those issues that are of no concern to you, or that you feel are much less important.
The members of this site can complete the list with more issues (try to keep the list reasonably short by adding only fairly general topics).