Quick answer: Choose Crete for size, variety and food; choose Rhodes for medieval history and easy beach resorts. Crete is the epic; Rhodes is the charming all-rounder.
Size & variety
Crete is far bigger and more varied (mountains, gorges, many beaches, distinct regions). Rhodes is smaller and easier to cover, with a famous medieval Old Town.
History
Crete has Minoan Knossos; Rhodes has its UNESCO medieval city and the ancient Lindos acropolis.
Beaches & resorts
Both have great beaches; Rhodes is more resort-focused and compact, Crete more sprawling and wild.
Who should choose which
A longer, varied, food-rich trip: Crete. Medieval charm and easy beach resorts: Rhodes.
Crete vs Rhodes FAQ
Which is bigger?
Crete, by far.
Which has better history?
Both are rich; Rhodes for medieval, Crete for Minoan.
Which needs more time?
Crete (a week+); Rhodes works in 3-5 days.

