Only 2 matches left in the competition, the competition for slots for the champions league is getting tougher, I personally think Leverkusen will definitely get a slot for the Champions league, but if 4th place is most likely Freiburg has more chances than lepzing, lepzing just missed the chance qualify for the european league final after being beaten by Rangers, Rangers' defeat may have an impact on the domestic league, we'll see, can Freiburg maintain its position at the end of the competition.
Freiburg likely have better performance than Leipzig in this season in general and in the end phase of season in particular. Leipzig is more familiar with Champions League than Freiburg so if we are talking about what is better for Bundesliga, I beleive Leipzig might perform better than Freiburg in Champions League.
Same quality of players but with more experience in Champions League and better resource allocation for Champions League and Bundesliga, Leipzig is a better representative for Bundesliga.