IMO< tires with chains will out do 99% of tracks 99% of the time!
Unless you add chains or carbide studs to the tracks!
most all tracks are not made for snow9ASV does actually have the best snow tracks I know of)
But tracks by design give more flotation and less ground pressure
which more or less give you less weight on the ground at your contact points!
add in any hard compacted snow or ice, and well, rubber tracks will not grip as well as good chains over tires!
this is why when folks buy special snow tires for skid steers there not as wide as basic dirt tires
the reason is, you get more weight on the tires contact patch!
and next there made of much softer rubber, that has way more snipes to grip ice and snow!
most all tracks are mode to handle dirt mostly, with a few that are made to work OK in snow
as the softer the rubber the better they work in snow, but the faster they wear when using in dirt work!
true die hards that make a lot of money in winter time plowing snow, and do dirt work in summer time, tent to sway tracks for snow work , using tracks made more for snow
and then swap bad to basic tracks for dirt work
things to consider too, though is over all weight of the machine
as this can vary a lot from machine to machine,
even wheel base can make a different in how well or not it does in snow!
But from my experience, tires with chains, do the best, all the more so if on compacted hard packed snow, and or any ice is involved!
I would maybe think best setup might be dedicated snow tires with chains on them!
also keep in mind chains come in many different styles from basic to pretty aggressive models
so, using the right chain for your conditions, can make it work best
NOW if you took good snow rated rubber tracks and added chains or a lot of carbide studs, they might be best, but I think costs wise, unless you making money plowing snow, I don;t think its a worth while deal, and chains and studs can also do damage to surfaces, costing you $$ to repair damages, this applies to both tires and tracks with chains and studs though!
steel tracks work pretty good in snow, but get them on ice on a hill, and you will soon learn how gravity works! HAHA! and some pucker factor pending how step a hill your on or was on !
or thats my experience here!