I think if I constructed a playoff team, I'd want first a strong and deep bullpen, especially these days. Then I'd want defense and speed, which tend to coincide.
The Braves very recently got its first (and only) complete game and sacrifice bunts of the year. The game has obviously changed, they got hot in part because their bullpen was efffective with starters going 5-6 innings often as not, and defense keeping them in games late (usually).
Obviously you'd love to have starters with names like Maddux/Glavine/Smoltz/Avery, but those guys only won the WS once in 14 tries.
Over 162 games, I'd go go more for starting pitching and power in the lineup.