Easy to see why the EPS is less ethnused with snow in the 288-360hr timeframe. It concentrates the PV lobe more over SE Canada, the GEFS/CMCE split a piece of it off further East near the Atlantic and that allows for some room for that southern wave to amplify.
The EPS is probably better for chances down the road after that, but worse for the day 10-15 threat window.
The the CMCE is really the best of both worlds because it looks good long term too.
Just my two cents, but I'd really rather not have to can kick out past day 15 again which is pushing in to March, so I'm rooting for the CMCE/GEFS evolution. (also i'm out of town Feb 25th-March 2nd so that's affecting my rooting interests).