Gerald Wallace isn’t shy about saying it and he doesn’t mind if the Bulls hear it. “We’re the better team,” he said last night, following the Nets’ 110-91 live-another-day first-round playoff victory over the Bulls at the Barclays Center. Wallace said it more than once. Game 6 is set for Thursday at the United Center in Chicago and from Wallace’s point-of-view, Brooklyn might as well prepare for Game 7 on Saturday night. “Our backs are against the wall right now,” he said of Nets, who trail 3-2 in the best-of-seven series. “We have a fighting spirit and we’re a fighting team. We’re not ready to go home. We feel like we’re better than this team. We just had some games slip away. We feel like we’re good enough and a better team that we can come back and win three in a row just like they did.” The “we’re a fighting team” part is a direct response to the Bulls reportedly calling the Nets “gutless and heartless.” That was what a Chicago reporter said the fifth-seeded Bulls were privately saying about the fourth-seeded Nets, and that was before the series began. The reporter passed along the Bulls’ thinking during halftime of Game 4 on Saturday in Chicago, and the Nets watched a video of his interview before Game 5. But until last night, it was hard to argue the point. After winning Game 1, the Nets had lost three straight, including that awful Game 4 in Chicago, in which they blew a 14-point lead with three minutes to play in regulation and wound up losing in triple overtime.