I think that it is obvious that Strikers and Legends are the two teams playing the best right now. Both of them crushed good teams in the round of 16 and didn't have any trouble in their group stage which also both had a top 5 team. I would say it is probably a 90% chance one of those two take it.
My prediction of who is most likely to win it would be in this order.
Strikers 1
Legends
Surf
Albion
LAUFA
Strikers 2
Celtic
Pumas
Strikers 1 are the favorite. Until someone proves they can be beaten on an 11 v 11 field you have to expect them to win it all.
If Legends pulls off winning the title they deserve the most credit. Their last five games of the season they would need to go 5-0 against the other top 5 teams in SoCal to win it all. They have a pretty good chance to pull it off.
Surf appears to be 1-5 against the four teams from the top half of the bracket so far this season. They have enough talent to win against anyone in the final and make up for all the unimportant losses. They also have the easiest path to the final and should be there so it is a one game tourney for them.
Albion would need an unbeleivable weekend to knock off Legends and Strikers on back to back days when those two teams are at peak form. There is a slight chance that could happen, but it is unlikely. My kid plays for Albion so I have to hope for the best.
You never know about LAUFA. They have tons of athletic kids, but have lost big several times this season. They can beat anyone on a good day, but their most likely path would be Strikers/Legends/Surf. Past history would indicate they aren't likely to win all of those without losing one.
Strikers 2 has a fighters chance. If nothing else the Strikers coaches over the last two years seem to have done a really good job of preparing their players for the games that really matter. Not sure how that would play out in a Strikers 1 vs Strikers 2 final, but that would be interesting to see.
There seems to be a lot of talk about Celtic. I haven't seen Celtic play, but based on their schedule they haven't faired well against the better teams this season. I think it is way more likely that Strikers 2 makes the final by upsetting Surf which isn't likely.
Pumas would have to pull of three huge upsets to win it. Making it to the semis for them would be a good accomplishment for the season.