I'll grant you brand awareness, the one difference here is that if there's a bigger star in Hollywood right now than Chris Pratt, I don't know who it is. That guy craps box office money right now.
Other than the established veterans, the new actors are going to need to prove themselves.
I don't doubt TFA will make more than JW, as JW isn't going to make as much as Avengers did (domestically), It's the question of the opening weekend.
More impressive than JW beating the OW record (which is essentially a tie, with some studio number crunching) is how JW slaughtered the June record.
June had been a dead spot for films which is why that first weekend in May became so coveted for the last 15-20 years. MoS opened up the window a bit for films coming back in June, but JW just blew the lid off June. Unfortunately it's also going to suffer a bit, in that if it can hold to a -60% that's going to be good with In and Out opening up. So JW isn't going to have a 3.0 multiplier like Avengers did. It should be able to cruise to $525-550 pretty easily.