As for MGS5, from what I've gathered from most of the reviews is that the story isn't all that in-depth, however the game play is fucking off the god damn charts and crazy the amount of absolute freedom you have to decide exactly how you want to tackle each mission and that everything you decide and do is actually important in the game. In other words it's the most player-driven Metal Gear ever. So if you didn't like 70% cut-scenes you'll enjoy this game. That isn't to say cut-scenes aren't apart of the game, the intro is like a 15 minute long unskippable cut-scene. But from there out it's more or less up to you on what you want to do.
If anyone has watched any trailers or scene screen-shots, it goes without saying the graphics are incredible. Easily the best looking PS4 game to date. They really did an amazing job.