I used to only tune in to softball around the World Series. In recent years I've streamed a fair number of regular season Pac 12 games, mostly Washington.
Oklahoma's offense is ridiculous, but they probably haven't been facing great pitching, and not sure how good their pitching is.
UCLA has an unbelievable staff. 3 really good pitchers. Enough offense to get the job done, and they usually don't have to score much w/ that staff they have.
Washington is good, maybe good enough to be one of the last 4 teams standing if everything goes right, but I just don't think they have what it takes to win a Natty. Can't find a reliable second starter. Plenty of good hitters, but offense is kinda hot and cold.
I haven't really followed them, but it looks like Clemson has a really good pitcher (I know, not SEC, but close).