Another older player here. I started playing D&D in 1974. I'm 56 :) 5E is looking pretty good. For me, it's about the world and the adventure, not the perfect character build.
I started in '79 and I feel the same way...the personality I instill in the character has more to do with who he/she is than any mechanics. I love the options presented in 5E and think that they make a great base to build on. I find the game to be quick, fun and easy to play. This is a welcome relief after spending huge tracts of time creating PCs, NPCs, and customizing monsters. I haven't DMed 5e much but I find that enjoyable also.
I prefer games where you spend more time adventuring with the character than creating him / leveling him up.
Also agreed...the games I have played in 5E have awesome pacing to them and at the end of a night I feel like we have accomplished something and advanced the storyline well. In 3.5/Pathfinder I found that often a whole night was spent clearing 2-3 rooms of a dungeon and it sometimes took weeks to get out of dungeon combat mode and into some story advancement.