While the power numbers of the era skew unfavorably for Andruw and Chipper, both have remained well clear of the steroid taint and I could see that, fair or unfair, helping their HOF viability a lot. When comparing the two players, I actually see Chipper having a better chance to make it then Andruw because of the "best player" argument. Chipper has been pretty much the backbone of the Braves throughout their historic great run and is/was the undisputed offensive leader each and every year. When you think of the Braves on the offensive side of the diamond, you think of Chipper first and foremost. I think voters will look back on those Braves team and feel a need to reward someone.
There was also a period of years where Chipper was the best third baseman in the league. The best. While Andruw may put up better career numbers (from a HR and RBI perspective), I don't think there has been any point where baseball people thought that Andruw was clearly the best CF. The best defensive CF? Sure. Best overall CF? Maybe...
I am admittedly biased as a Braves fan. I believe Maddux, Glavine, and Smoltz are shoo-ins and *hope* both the Jones boys make it. But if I had to pick one, it would be Chipper. He has meant more to the Braves and has been more "great" than Andruw.
As for Morris, the argument against his candidacy has always been the high ERA (3.9) and the inflated record thanks to the high-powered offenses behind him. Smoltz suffers from neither of those detractions. Morris, like Smoltz, is revered for his big-game reputation. What people do not know is that Morris had average postseason numbers (7-4 3.80 ERA). Again, a far cry from Smoltz. Outside of the obvious names, I think the pitcher with the best chance to make it to the HOF is CC Sabathia. He's going to need Johan Santana to get injured so he can win a few Cy Youngs but he has the stuff and the durability to be great...