Huge leaves with prominent vein systems and lots of fiber, like bigleaf maples, are also less than satisfactory in mulch. They become slippery over winter and mat down without breaking down sufficiently. If it's possible to shred or chop these leaves, as with a shredder or even a lawn mower, they will be useful as mulch. Chopped and shredded leaves also make quicker compost. Admittedly, shredding leaves requires patience and proper equipment.
Hoppers are often too small for armfuls of leaves, and wet leaves choke the shredder.
At least, they choke mine. I still use a vintage 1973 shredder which is basically a lawn mower at the bottom of a hopper. The ideal is getting at shredding when leaves are still dry and crisp. If you've discovered that your equipment and time coincide to allow you to shred leaves, there's no finer garden amendment. Making compost with fallen leaves is easy, even without shredding them, though like all compost, leaves decay faster when shredded or chopped.