"The rivalry with Novak, it's been more straightforward in my opinion," Federer said.
"That's what I like about the rivalry. I don't know how it is for him but I feel like he doesn't need to adjust his game as much either.
"I think it's just a straight shoot-out. I think that's the cool thing about our rivalry.
"It's very athletic. We both can handle whatever we present to one another, and I think our matches are very even."
One innovation Federer is likely to present in Arthur Ashe Stadium is his self-proclaimed 'SABR' - the new 'Sneak Attack By Roger' shot, which includes rushing the serve and returning half-volley en route to the net.
Djokovic's coach Boris Becker described the stroke as "almost disrespecting the other guy's serve" in an interview with Sky last week, which fuelled suspicion about the irritation of Djokovic, who has been frosty in his own assessments.
"No I've not considered doing that," Djokovic said on Friday.
"It's an exciting shot for him. For the player opposite side of the net, not so much. So I have nothing else to say about that."
Federer was equally brisk in his response to Becker. "It's not disrespectful," Federer said. "Pretty simple."
Even if Djokovic does not approve, Federer's latest attacking weapon has gone down well with the fans in New York, who are likely to side again with the Swiss on Sunday rather than the Serb.
Djokovic overcame similar bias to beat Federer in four sets at the Wimbledon final in July but the world number one can become agitated when a crowd rallies against him.
"I hope the crowd's going to be happy to see me in the finals again after six years," Federer said.
"I definitely think if they would be more on my side that will give me a lift and extra energy and momentum possibly. That could swing the match a little bit."
Djokovic has been in brilliant form, conceding just three games to defending champion Marin Cilic, in what was the most one-sided semi-final of the Open era. He knows he will not have it so easy on Sunday.
"Obviously we all know how consistent Roger is and how good he is in the latter stages of grand slams," Djokovic said.
"He's always going to perform on a high level. Rarely he drops his level. He always makes you play your best."
