It's interesting how different everywhere is. And I didn't know that Cambridge and Oxford don't classify degrees. They may as well start doing it really, I'd say...
For me, first year doesn't count but you need to pass at least 100/120 credits and all your core modules. And then weighting for second and third years is a bit odd. From my understanding, they work out what the result would be with the weighting at 1:1 and 1:2, and whichever result is higher is awarded to you. Which is..weird, but nice!
Edit. Yeah this is what it says in the handbook: "The degree class for a Bachelor's degree with Classified Honours is determined according to the better of 1:1 or 1:2 weighting of grades between years 2 and 3, respectively."
Is Leeds the only place that does this??