Def. quicker with the front. Nice product from TrueWeather:
Mean isobars in black, mean Hs and Ls (large in red and blue) and individual members in red and blue (little hs and ls)
EPS looks like it is pushing the cold east a little quicker than the OP, but tough to tell since I'm having to switch back and forth between services to see the differences.
I would post it, but weathermodels doesn't have a lot for the GEPS. It's not even in their regular model "selection" and you have to go to model labs and click through it frame by frame, without a ton of panels.
Regarding the Euro's depiction of the arctic front, here are some gifs that compare the new parallel Euro (left) to the current operational Euro. 2m temps/ 24 hour snowfall/ MSLP (no 500 mb charts available for the para). Looks like the parallel is a compromise between the far western Euro solution and the more easterly GFS
.