I am just about to start marking a load of degree exams. It is a big job and one that you cant skimp (think -- whenever you are tempted -- would I want the person examining my child to skimp? No.) And it is always interesting and charged.
For me the main issue is one of change and how you might make the comparison between students over the 35 years I have been doing this. Many more people now get 1sts and 2.1's in my university and every other, and there is plenty of talk about dumbing down. Now, students who might be reading this, what I am about to write is not related to what you have written in your scripts... But the basic point for me is that what people write in exams really has got better.
That does not mean the students are cleverer, or that that they have a better capacity for doing a PhD or whatever. But there has been a change.