You want the highest quality, yet you choose the two lowest end ProRes types as possibilities? If you want high quality, you want ProRes HQ or (if you have the hard drive space that are fast) ProRes 4444.
ProRes Proxy is the “offline” editing codec…meant to save space and be light on the system for ease of editing. ProRes LT is a lower end codec, very good quality but light on the drive space requirements. Then you have ProRes 422 with is the main codec…then HQ which is meant for 10 bit shooting formats, and 4444 which is the top of the line, and also good for graphics as it can contain an Alpha Channel.
Shane
Little Frog Post
Read my blog, Little Frog in High Def