I didn't play any of those three games. What comparisons to UO, EQ1, WoW, DAOC, TESO etc can you make?
A sandbox game with open world PVP where other players can steal/destroy your property sounds a lot like UO to me.
Its a healthy mix of several games that the current crop of MMO's should of been incorporating for a long time.
You have trade runs for currency which obviously enemies or friendlies can gank your ass and take your pack for their own reward. When it happens it burns. When you do it to someone else its a high five moment. This is kind of like Eve.
Best gear is crafted. Drops are needed to make the gear.
People's personal farms and houses are off limits unless they give you access. What people steal is their stuff not located on their property. You generally will want stuff faster or more stuff and people will place secret farms in the massive world that is out there. If you can see it you can get to it and as you get out of the teens the world is really huge, open and seamless. So if you explore there is a good chance you'll run across someone's crap in a non protected area and when you do its "OH YEAH!" moment. You can harvest all their crap and then cut it down for lumber for a double the loot and smile knowing when they go check it later they will be pissed. Do this to the enemy and no issue. Do this to your own faction and you get criminal points.
PvP up on the northern continent is kind of like SB and some traditional DAOC / GW2 siege. There are resources up there people will want and prime, limited real estate people will fight over. 24/7 war up there and sieges on guild castles use something similar to a bane timer.
The game is mostly faction vs faction with 2 main factions. Guilds can form their own faction if they dominate and pick the friends they want to deal with. There is also a pirate faction for people that just want to salt the earth.
You see faction vs faction combat around 30. You are heavily encouraged to interact with each other. You can see your own faction flag and gank you as well although there are consequences to doing so and stealing your factions stuff or just mindless killing them can quickly make you a pirate if you aren't careful or put you in jail. Jail time increases the more you do.
There are dungeons and lots of world bosses to fight over. Dungeon loot is ok for leveling but you'll want crafted at end game.