I agree, I think Real Betis is one of the most surprising teams of this year. If they were a little bit luckier, they could even pass Seville. It will not be easy to win a match against this team when the team has shortcomings.
Atlético Madrid's game has started to get better in the last games. If they show a good game against Betis, they will get points from this match. But I still think that the favorite team of this match will be Real Betis
Yes, I think so too, Real Betis deserve to be favorites in this match. Diego Simeone is not able to play some of the starting players due to injury, he has to look for alternatives to fill the vacant positions. Meanwhile, Real Betis look quite confident ahead of this match, because they will start the match at home.
Manuel Pellegrini's men will try to get 3 points from Atletico to secure their position, because if they lose points, their position will be shifted by Barcelona, because their points distance is quite close, moreover Barcelona still has 1 game yet to be played.
Barcelona is a big threat to Real Betis. There is no difference in points between them, as you said, there is also a match they haven't played yet. With that in mind, it's very likely that Barcelona will get ahead of Betis. Betis must win this match in order to make the end of the season good, otherwise the standings will get closer together and the rankings of many teams will have changed
Not only Barcelona is a threat to Betis, but Atletico is also a serious threat to Betis. If Betis is not careful then Betis can go down to position 5
and that means Betis failed to get into the top 4. Betis must not let that happen, Betis must be able to beat Atletico to secure its position in order
to remain in the top 4. Hopefully Betis players don't lose their morale after losing to Sevilla in the previous match, Betis cannot afford to lose again
against Atletico. The Betis vs Atletico match is a very interesting big match to watch, the match is very important for both teams, therefore
the match is likely to be tight and entertaining. I predict Betis will beat Atletico, besides the match will be played at the Benito Villamarin stadium
which is home to Betis, I see Atletico this season playing badly, so Betis chances to win the game is quite large.