This question has been asked many times, but no one can point to any evidecne that one is better then the other, my belief is they are the same.

Have you tried google keyword tool
https://adwords.google.com/o/Targeting/Explorer?__c=1000000000&__u=1000000000&ideaRequestType=KEYWORD_IDEAS

Rayan i have just found one of my clients has the same problem, I am glad of your previous expirence as i dont want to have to go thought such a long process.

Did you investigate if blocking those links by making the server drop the request will work. This seems to be a easier way if posible?

I should not of said 2 pages, but it has been shown that both links will give link text relevancy.

The javascript link will be followed, it will not help

Dont use no-follow, you will just leak link juice.

One way around this, is to use a anchor # in your url for the image. like page.html#someterm

This will in fact give you link text relevancy for both, google will see this as 2 different pages.

Make sure you have alt text for the image.

This tataic and well as what x-com may in the future be seen as over optimization, so it may be tter to do somthing like this

Your link text

You can just link the whole lot in the one link.

Or move your text to above the image.

Very hard, You would need to register the domains with different details for example. the pattern of link networks is very hard to hide.

Having different c-class is not so importatnt, unless a high number of your links come from the same c-class. a c-class has 255 ip addresses, but each ip number can host a infinite number of websites, some small towns may have most of their web sites hosted on athe same ip number let alone c-class, so it is not un-common to have such links.

I would suggest you use the content for all these blogs on your own site, and try to attactt links. Haver a link network is dangerouse