We used "first-year," and then the usual sophomore, junior, and senior titles. Because my school didn't really accept AP credit (just for placement in classes), and only looked at IB credit after the sophomore year, there weren't people running around saying how they had sophomore standing as first-years. I only know a handful of people who actually took the IB credit (a year of credit was offered).
I really liked college.
Or, at least my college.