Philadelphia or LAFC? Who's got the edge in the Supporters' Shield race

Philadelphia Union are playing for the MLS Cup. They have a tough schedule. LAFC are trying to win the title. The Union want to improve their team. LA FC changed their roster during the summer transfer window. Their players have to adapt to new surroundings. Philadelphia Union can win MLS Shield. If they do, they will play in the final. There is a possibility of an MLS cup final away day. Los Angeles FC are fighting for a playoff place. Portland Timbers are also fighting. It comes down to Decision Day. Losing the Shield would be a bummer for LA. FC can still win it.