It's pointless comparing Rodri to Bellingham. They're two different players entirely. It'd be like comparing Messi and Iniesta; both played in close proximity on the pitch for long periods of their careers, both all-time greats of the game, but players with differing attributes.
Although, interestingly, both Rodri and Bellingham have one thing common; delivering "clutch moments", as Gen FIFA like to say. If England or Spain get to the final, and you had to stake money on a player from each to deliver the deciding moment, I'd stake on Bellingham for England and Rodri for Spain.