Sorted by points… 3-Lamb and 4-De Palma are tied for 1st.
Using points head-to-head… 3-Lamb 1, 4-De Palma 1; still tied.
Using most wins… 3-Lamb 2, 4-De Palma 2; still tied.
Using differential [GF/(GF+GA)]… 3-Lamb 0.889, 4-De Palma 0.667; 3-Lamb is 1st, 4-De Palma is 2nd.
The above uses the current tie-breaker settings from the website; official rules prevail in any discrepancies