While I think that Leeds will almost certainly win direct promotion, it's hard to predict 2nd one. WBA has 4 points advantage and 1 game more played (they just played 0-0 vs Fulham tonight), but Brentford is on a winning streak, winning all 5 games since season restarted and they have 3 easy games (at least on paper) until the end.
I watch WBA matches as of late, mostly because of Slaven Bilic and Goran Ivanisevic I hope Bilic gets another chance in Premier , I would love to watch that so I'm betting on WBA and Leeds to go through directly.
Bielsa "El Locco" is one of my favorite coaches , love his approach to high pressing football, even watched quite a lot of his coaching seminars and that men is a genius. If you add them them to Premier you can clearly see that they will have fun matches to watch.