The Bayern Munich vs Frankfurt match will certainly be quite interesting to watch, sharing points with Leverkusen I think is still a reasonable result for Bayern Munich considering the strong performance of Xabi Alonso's squad but I don't think that should have happened in their match against Frankfurt, or I mean full points should have been obtained even though I know they will be playing away.
Their point difference is only 1 point now and indeed this is a very good condition to see how this match will happen.
Frankfurt statistically and player strength is still below Bayern for now but playing at home could make a difference in this match. I think this will be a match with quite good tension, it's just that when talking about victory, most likely it will be Bayern who get 3 points even with a narrow win later.