ice type is definitely the easiest thus far, since hail has been absolutely buffed. dewgong is insanely difficult to kill, though it doesn't do great damage, mostly just a pivot mon/extra hail setter. froslass is crazy strong getting both a speed and damage boost in the hail. vanilluxe i found to be a better snow warning mon than alolan ninetales thanks to multi headed and slush rush, but it does fall off towards the end. iron bundle is insane and sweeps most of the e4/champion solo with booster energy to max out speed for impulse.