Everyone who uses a draw knife has their own preference. There are so many different blade styles out there, straight, curved, skinny, wide etc.
I prefer a heavy, straight blade with the handles on the same plane as the blade, not tilted up.
Here is my #1 draw knife, I have others but always come back to this one. It is a 14" debarking draw knife used by log cabin builders. I have had this draw knife from day one of my bow building experience, it has seen hundreds of osage staves.
I can do heavy work or the most delicate work with it. There will be a learning curve with which ever draw knife you select so don't give up if you make a mess of things starting off.
Another thing, I like a draw knife razor sharp, lots of folk like them dull. Once you get good with one, razor sharp is an asset.