Although I preferred Fallon/Liam before the finale, I might be leaning towards Team Michael now.
Michael saved the whole damn family and has done a good job helping Fallon develop as a character this entire season. The guy even ran upstairs to help Cristal and Alexis. Liam may be a billionaire but Michael does volunteer work, he saves lives, looks out for his community, and has proven that he doesn't allow himself to be completely consumed by revenge fantasies even after being wronged. He's also a good driver.
I feel like a Fallon/Liam pairing runs the risk of getting stale quickly.