I'm probably overly optimistic, but I think our current team (with a healthy Ray Allen) is maybe a half-step below Miami, and could very well beat them. If you add West, Green and Wilcox to this team, I think we'd surpass the Heat.
Of course, if we'd started the season with West and Green, I don't think we'd be in the same position today. I don't think Bradley would have developed in the same way, as Green probably would have gotten a lot of Ray's backup minutes. It's possible that Bradley would have shown flashes, but he wouldn't be a starter.
Still, I think this team would probably be the best one in the NBA with West/Green/Wilcox. The media might not recognize us as favorites, but I think we'd have the strongest and deepest squad.