1) Blender is faster to learn, mostly because it has a substantially larger community and far more guides and tutorials. Finding any kind of help for Modo is an incredible chore. Modo does have a far more intuitive interface and toolset, though. 2) Modo is definitely faster once you customize it with hotkeys and pie menus.…
Which one would be better for you depends a lot on your needs, preferences, and pipeline. You can also just try them both out. Blender is free, and Modo has a free trial. Budget constraints is a big consideration; Blender is free, and a solid all-in-one toolset. It doesn't play as well with other software, though. Modo…