1) Trinity College: founded in 1546, Trinity is one of the wealthiest colleges in Cambridge and is known for its beautiful architecture, including the famous Wren Library. It has produced many notable alumni, including Isaac Newton, Lord Byron, and Ludwig Wittgenstein.
2) St John's College: founded in 1511, St John's is another highly prestigious college with a strong academic reputation. It is known for its beautiful chapel and has produced many notable alumni, including William Wordsworth, Samuel Taylor Coleridge, and Charles Babbage.
3) King's College: founded in 1441 by Henry VI, King's is one of the oldest colleges in Cambridge and is known for its stunning Gothic architecture, including the famous King's College Chapel. It has produced many notable alumni, including John Harvard, Francis Bacon, and Henry Purcell.
4) Queens' College: founded in 1448 by Queen Margaret of Anjou, Queens' is another highly prestigious college with a strong academic reputation. It is known for its beautiful gardens, including the famous Mathematical Bridge.
5) Pembroke College: founded in 1347, Pembroke is a relatively small college with a strong reputation for teaching. It is known for its beautiful chapel and has produced many notable alumni, including Edmund Spenser, William Pitt the Younger, and Bertrand Russell.
It's important to note that these are just general rankings and that there are many other excellent colleges at Cambridge. The best college for an individual student will depend on their specific needs and interests.