My wife & I have done more than my share of hauling large loads across all sorts of snow and ice conditions. Actually, we use the sleds to haul horse manure from our barn to a compost pile at the corner of our small property on a weekly basis - and this can be very hard work in deep snow.
We've used the lower tobbagan-like sleds like the one sold by REI, but they have a big problem with tipping and with snow getting into them. They work fine for very light snow and ice, but that's about it. If you have a very light load they'd probably work OK.
The absolute best sleds we've found are Shappell Jet Sleds commonly sold to carry ice fishing gear. These sleds are deeper and ride very nicely through both light and heavy snow - as well as mud.
Ken K.