Wow, great job you did on the review. Pretty solid and consistant and adressed every point in the game. Very well done 
Oddly though, I never experienced any of the bugs you mentioned there (except for the crash to desktop until I installed Skyrim 4GB mod). Only bugs I experienced where disappearing objects through terrain after dropping them and a dragon skeleton suddendly appearing inside Solitude out of nowhere. As for the quest entries not updating properly, that only happens when you don't do certain events in order (although, being as big as a game as Skyrim is, that can happen often), but it can be easily fixed with commands prompts.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
