I love my digitech but I don't know what the Zoom can do. I would go with the RP80 if you chose that, it's not much more and it has the pedal, which can definitely come in handy. I couldnt imagine it without it.
Both are ghastly.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.