When trying to determine the most fundamentally sound team in the league, one could make the rankings based off of any number of fielding or hitting statistics. How many errors did a team have? Do they hit-and-run successfully? How much does a team use sacrifice plays? What is their stolen base percentage?
The point is this—it's very hard to determine what is and isn't a fundamentally sound team. Sure, teams might not always bunt runners over, but then again, is there always a need for that given the power in the game today? Match-ups can also play a factor in this.
For the most part, teams that are fundamentally sound and do all the "small things" important in the game will likely be the better teams in the league.