Starting with the biggest:
Top is the Granfors Bruks large draw-knife. Designed for debarking logs, but I find it useful for shaping larger work and even use it in a big shaving horse. I like the weight, it is heavy, it has its own momentum when cutting and is easy to use. It is also curved in 2 planes and can not be used on flat timbers, and certainly not bevel down.
Below is a R Sorby again a large draw-knife, 2 inches wide and blade length is12.5 inches long.
Top is a Graves draw-knife, this is my standard and most-used for anything but spoons and smaller work. 1.5 inch wide and 10 inches long.
Below is a Gilpin "gents" draw-knife 1.1/4 wide and 6 inches long. Box wood handles. This is my favourite.
Do note the handles on these knives, I like how they are thin at the index and little finger positions, this is the handle shape I prefer.
Push knives: top is a Mora push-knife. Unfortunately it has a bevel on both sides, I would have liked one side to be flat, making it a more versatile tool. Just over 1 inch and 4.1/4 long.
This is best for the outside of bowls, and I have never successfully used it as a draw-knife (pull knife).
Below is a riving knife I made from O1 steel, and is for making fan birds. 3/4 inch by1.3/4 long and only 1 mm thick and very flexible. Ideal for the riving of feathers for fans and fan birds. Used also for the shaping of the feather tips, working across the grain in pull mode.
So there you have it, the draw-knives I have collected for my work. I have others for use on courses or that I sell, but these are staying with me.
If I only had one it would be the Graves, as it is a good all rounder. This is the size I recommend when buying your first draw-knife.