Well here are some comparisons: On St. Patrick's Day the Euro has 4C 850s and the GFS has -5C. On 3/21 the Euro has 6C 850s while the GFS has -9C. Granted, that is partially due to frontal timing differences but still. Then they both agree on a slightly below normal day on the 22nd with 850s of -3 to -5C. Then in clown range (not that it matters) the GFS keeps us seasonably warm with highs in the low to mid 50s but the Euro insists on mid and upper 60s mostly.
EDIT: Oh, and the GFS tries for the late season miracle snowstorm at the end of the run on 3/27 lol.