Firstly, the 120 doesn't exist anymore. Unless you are buying last years models, it's the 130 now.
I just bought the 110s, still need to pack in the liners a bit. They're a little too narrow right now, I ended with some pain on the inside of my foot after skiing all morning. That said, I knuckled a jump pretty hard, didn't hurt my feet at all.
As for the 80s vs 130s, it depends on what you want out of them. If you're looking for comfort/kicking it around in the park, go with the 80s. If you want all mountain performance that will still give you the cushioning that comes from being in the Agent line, go with the 110/130.