For me, I love variety, so I play basically all content.
After my Dailies, I most often enjoy just roaming OW or WvW. Sometimes I get more invested into Fractals, PvP, or working on a specific Legendary. Occasionally I'll jump into a Dungeon or Raid. I haven't tried Strikes yet but they're on my list.
My favourite is adventuring through OW with a buddy or two, especially when I don't have a full gear set or Masteries unlocked. I prefer not using the TP because I enjoy opening bags of gear and seeing what I get. Unfortunately, there's no way to create "seasonal" characters, nor is there an ironman mode or anything, but I'd love to see one in the future as these modes offer a really nice alternative way to play. For now, I just RP them when playing with friends.
What do you guys most enjoy? I'm curious how many players actually spend most of their time in difficult instanced group content, cause the subreddit would have you believe that most players do this, yet I recall seeing ANet mention only ~10% of players do this.
I guess that's just how F2P goes in games where most content is P2P.
GW2 has actually had remarkably little powercreep compared to other games, but even so, there's still enough that players without a glider, mounts, elite specs, etc will struggle to keep up.
I wish there was a way for players to reduce their own power in OW in exchange for slightly increased rewards, even if those rewards were account bound. Most players would go for this (I think) and it would reduce how much stuff gets obliterated in seconds without making players feel like they got nerfed.