Both are talented but Oscar isn't really my type of AM. In fact he's been playing a more defensive role for both Brazil and Chelsea for the longest time. Not sure that's what we need. Now Firmino... He's strong, tough, can run all day and has a hell of a pass and finishing.
Also his new partnership with Neymar could be the spark needed for him to flourish at a higher level and we'd be lucky to have him then. So my choice is clear, huh?