>>52329807Skyrim feels like Fallout New Vegas with hit and block registration, Fallout 4 (when not bugged out) has better hit interactions than Skyrim. Everything lacks impact. This is the least of the points and while true of you feel like disagreeing I'll conced this point immediately.
On the real mechanical side of things, they have the same base mechanics. Light attack, heavy attack, block and deal extra damage from horrible stealth mechanics.
Fallout has more meaningful weapon variety, not that it's great, but it's definitely more.
The ability to target limbs, and weapons adding possible strategic descion making.
Fallout doesn't have good melee combat, but it doesn't have something that barely functions as a combat system.