I'm betaing a story right now that is almost all OCs. It's a lot of fun! It's well written and very exciting. I don't have a prejudice about OCs as many people seem to do (I don't have a OTP either). If a story is good, I'm happy to read it. But I confess, I look for Frodo first. There's many good authors I will never read because they write about some of the other characters. My loss, but one can't read everything!

BTW, I flunked the Mary Sue test. I tried it out for Too Many Tooks, and completely failed. My 3 Took daughters are all related to Frodo and Pippin, they had many lovers before they pounced on Frodo, and their physical attributes are described frequently during the many rounds of love making (well, sex. It's just sex!). What I think this test is trying to do is point out the obvious cliches and pitfalls, but it really isn't a litmus test. As you've heard from many of your commenters by now, one person's OFC is another's Mary Sue.