Yes they much better Stan, given the driver knows how to drive them. 3 things that make it better than a Zed even with performance tyres - skinnier tyres (std Evo tyres are 235, 4cm each side skinner than my rear tyres) so more pressure per tyre on the contact patch cutting through the snow, 4WD splitting the power 4 ways not 2 ways, so half as much to each wheel as ours. Finally as they are turbo'd they have sod all torque at low revs (no boost), meaning its very easy to apply little power - even at low revs in 2/3rd gear, my Zed was spinning my wheels when stuck.
To prove the point, my Zed couldnt get up the drive which has a very slight incline. Ben's Evo pulled my Zed up the incline with his car starting on the incline itself! Way way more grip than the Zed has. Saying that, driven properly, the Zed is no worse than most of the muppets in FWD cars