Dennis breaks better than Efren ever did. Efren never had a reliable break and his results suffered because of it.
That is the "only" think Dennis does better than Efren in his prime.
No one in the history of the game has been better than Efren after the break in rotation pool. In his prime Efren post break was ridiculously good in virtually every aspect of the game. He potted balls phenomenally well, he played pinpoint shape, he was more inventive on "creating" outs then anyone, he had a insanely strong safety game, and his kicking ability and return safety game was far beyond anyone before or since.
There are few players that I would say had "anything" on Efren post break in 9-ball and 10-ball. Strickland and Busty I do think had a little more of a power game, if you needed to put an insane table length draw shot with accuracy out there I would say no one has every really compared to Strickland in his prime in that regard, that type of shot and a superior break really showed in the Color of Money match when Strickland basically overpowered Efren in the first two days. If you watch that match the power game of Strickland on day 1 and 2 was nuts, he shot shots that no one dreams of shooting, and made them and turned what should have been a table turnover into another 3 or 4 pack. Efren fought hard and basically made every chance he got at the table count, but his inconsistent break kept letting Strickland get back at the table and put another package on him.
I do not think "anyone" had anything on Efren post break. In the time that Yang was an absolute monster money player and eviscerated Dennis, who at that time was a pure ultra confident gambler as good if not better than he is now due to his killer instinct and confidence, Efren was still quite young and still shooting at nearly his top level. At that time Efren had an open offer to "anyone" in the world to play him a huge match for huge money under one condition, Busty breaks for him.
Efren knew his weakness, and he knew with Busty's break he would be unbeatable. Everyone else knew that as well, no one was nuts enough to want any piece of Efren in his prime with Bustamante's break. Not even Yang, who "might" have actually had a chance in that match because in his prime he broke even better than Bustamante and had insane offensive runout power and one thing over Efren, the best talent to shoot a jump shot pool has ever seen. Yang was a freak back then though, as a total package with that break, his shooting ability, jumping talent, ect... there has never been another player who has shot rotation pool at "that" level. Not SVB, not Ko, not Wu, not Efren, no one has ever played the complete game as well as Yang in his prime. In his prime Yang would have tortured them all in long sets, and it would not even be close.