I have both. Aside from plowing, planting, and possibly shredding I prefer my skid steer. Shredding grass or weeds is better on the tractor. Shredding brush is better on the skid steer.
Anyrhing that requires a loader a skid steer is going to be way better. Digging post holes the skid steer is better. Running LPGS on roads skid steer is better. The visibility of the loader on a skid steer vs a tractor is night and day different.
Tractors can travel faster than a skid steer but on my place the terrain is rough so on a tractor I don’t go any faster than my skid steer is capable of any way.
Skid steers are way better in tight quarters.
If you work by yourself a tractor makes a much safer crane. With a skid steer you can’t get out with the loader raised without putting yourself in harms way.