Pretty sure I got full marks on a few A level papers.
In my first year of university I got 100% in "Vectors and Vector Algebra" and 93% in "Complex Methods", these being some of the few modules where I did better in the exam than the coursework!
In terms of stuff that actually counted towards my degree, apparently I got 86.7% in the exam for a module called "Waves and Optics" in my second year, 85.6% for "Thermal Properties of Matter" and 80.0% for "Quantum Mechanics". The last one, Quantum Mechanics, was almost certainly my favourite module as an undergraduate.