Looking for the ideal module for advanced search

I am new to Drupal and and have maxed out my skills. Still learning but in the meantime I can really use some help with the following problem I am having.

I have created a number of profile questions (50 to be exact). They are not mandatory. I don’t want to scare away too many potential users. The reason for the large number of questions is to allow better user matching. The best description would be an online dating service. My site is not an online dating service but a service to enable writers to find others (editors, ghostwriter, indexer, proofreader, agent, etc) to create a "team". What I would like to be able to do is the following:

Enable the “writer” to search on a set of parameters (basically the 50 questions with his/her ideal response) and list out matches. The list will identify the best match first (100%, 99%, 90%...) and go down from there .

Here is an example of what I mean:
User answers many questions with one being the following (answer A or B):
A) I am planned and structured
B) I am spontaneous and vague

The writer will go into a module (search module) and for example look for someone who is “planned and structured”. I have 50 of these types of question plus your other basic profile questions, sex, location, experience, genre, etc. I don’t expect to get 100% matches but some will be closer than others. I would like to have a “tool” (module) that allows searching and ranking of the results (best match first and go down from there). This is a must have feature for my site. I have looked through the list of modules on Drupal.org and nothing seems to stick out. A nice to have feature in addition to what I just described would be to allow the writer to rank the questions before he/she submits his/her query. For example location may be more important than experience.

Any help you can provide pointing me in the right direction would be greatly appreciated.

Regards,
Mike