Decision help Odin 2 pro vs Max

Greetings Fam

I need some advice. I want to buy an Odin 2 but cant decide which one the pro or Max. Problem is im fairly new to the emulation World and i dont know the differentces in the specs. So i would welcome it of you can help me unterstand a Bit more about it and which of the 2 is better for me. Some Info i want to emulate from nes to Switch but most the GC. If by chance someday possible the OG Xbox. Thanks in advance and sorry for grammer English is not my main language