Well, I own 5 so called mitre saws.
1. Harbor frieght 12" slider. Used for general construction, light but not really accurate.
2. Dewalt 12" slider. Used for deck building, treads, risers, and any trim that needs a large capacity cut. Heavy, needs tweaking almost everytime it gets moved.
3. 12" Makita, single compound. Great saw, a little heavy. Crown, large trim go to saw.
4. 10" Makita non compound. Goto general trim saw. Light, accurate, good dust control.
5. 10" Craftsman radial arm. Stays in the shop and is used as a general mitre, chop, and dadeo machine.