Answer:
I would say it goes something like this: Siberian Cat, British Shorthair, Turkish Van, and then Ragdoll Cats.
Step-by-step explanation:
Siberian Cat Length - 17 to 25 inches, up to 25 lbs
British Shorthair Length- 22 to 25 inches, about 17 lbs
Turkish Van Length- I could not find the exact length, but they weigh less than the British Shorthairs, which are at 17 lbs, while the Turkish Vans weigh in at about 12-14 lbs.
Ragdoll Cat Length- Also could not find length, but they weigh about 8-15 lbs.
I hope this somewhat helps. Have a great day!