Link tracking SE optimized

I want to track links that people click on, on my site. The issue I'm having is I have more than one link on a page linking to the same exact page, so I have to track those different links separate. I've come up with three different ways of doing this and just was wondering what everyones opinion was on the most effective way to do this from a search engine optimized point-of-view.

Choice 1: link to the pages indirectly using a tracking script (/track.php?link_id=1) that redirects to the page using a 302 (temporary) redirect

Choice2: link to the pages indirectly using a tracking script much like above using a 301 (permanent) redirect. The downside to this is that I would most likely only be able to track a user once since there browser would cache the redirect, and next time the browser would request the new page directly. Would this transfer pagerank properly?

Choice3: link to the pages directly, but use a js onclick handler that would request an 'image' that would track the click.

So what would you say is the best SEO-way of going about this? Any better ideas?

The way I would do it is put a variable on each link, so each link to the same page would be ~

1st link -
example.php?l=1
or
example/1/

2nd link -
example.php?l=2
or
example/2/

then use a script to take and log the page and the individual link clicked and 301 it on the receiving page.

This does have obvious drawbacks but I would do it this way.