How to make contacts on the computer follow those on iPhone

Check your sync settings in iTunes.  There should be an option that determines which address book takes precedence when duplicates exist.

Also check spellings, and it could even be trailing spaces after the name.  In the past, I have completely deleted akk of the contacts from one or the other and resynced, just to be sure the names would match exactly.

If anyone could help me it here, I'd really appreciate it. Apparently there's an issue with the fact I have two different iPhones that sync on my computer. Some of my friend's contacts are showing up on my iPhone after syncing. 

So I guess my question is two pronged:

1) How do I set it up so the two profiles are separate, and don't affect each other's syncing, and,

2) how do I set it up so the computer's contact list doesn't change the iPhone's contacts, and instead the iPhone is primary and makes changes to the computer's contact list (on Outlook) after sync?

In other words, I'd like whatever changes I make on the iPhone to then backup to the computer, not vice-versa.

Thanks again for any help on this.

Maybe you could sync your contacts with something besides outlook.  I see Windows Contacts, Google, Yahoo, and Outlook as options.  If you sync with a different program maybe your contacts won't get mixed up.

Yeah, you'd want to disable contact syncing through iTunes otherwise you'll end up with duplicat contacts on the device.

What I do is occassionally export my contacts from Outlook to Gmail to keep them as consistent as possible.  Unfortunately there is no syncing between Outlook and Gmail.