Fact: been dumping so many hours into FO4 xD; haven't touched anything else since it was released so i obviously love it
good stuff first:
-much more immersive (weather, graphics, etc.)
-really like the new layered armor and weapon mod system (sure more work could be done here)
-i like the new settlement idea (again, a lot needs to be ironed out here)
-gunplay/combat is great and love the new explosions
-i like how there's many more random events, i never use fast travel and walking/running never feels removed, everywhere i go there's suspense
-i like the new companions but feel some work can be done here
-really like how they did the open world, big, not huge, but dense
-really like the new Perk tree concept; i think a little bit more work needs to be done on the details here, but like way more than previous skill system
-new VATS is really cool even tho i dont use it
my biggest gripes:
-new crit system (still dont understand where the hell they got this mechanic and why they put it in...did someone's nephew need a job or something?)
-dialogue options (not to be confused with the mechanic, i really like how the conversations work, they are much more immersive and dont pause the game)
-i like it how before dialogue options would be dependent on many of the different Special stats instead of JUST charisma; again this might go back to previous statement, but dialogue options are just so much worse on multiple levels, this is something i can live with but i completely understand a lot of the gripes about this and how there's no RP at all anymore