There is no comparison in the looks dept.(R44 is pot ugly)
The baggage hold / quality of interior etc in the 120 is in a different class.
But . . . . I have never come close to running out of pedal in a 44.
I almost put my right foot through the perspex in a 120 trying to transition to the hover. (and we weren't that heavy)
In my, limited, experience the 120 is underpowered, not for a low time pilot.
Tarman