I played all of the games mentioned above.So here are my opinions.
Planetside2:This game used to have serious optimization issues,but seems like they sorted it out recently.The pings are fine if you play in Europe servers.The game is great,but you wont have much fun if you are not playing with friends or a clan.Even though the game is F2P,you will have fun only if you play,as it take too much time to purcahse weapons with ingame currency
BLR:It is a Pay2Win game,i loved this game in the beginning but after sometime it felt like all the guns looks alike and feels the same.The good thing is ,this game got the best customization ever.If this is not a Pay2Win,i would recommend this.I feel like this game is gonna shutdown soon,because for a such a huge game,there needs to be a massive playerbase.But not even 1K people are playing this on steam at any time.
APB Reloaded:This is a Pay2Win too,but the game is lot of fun if you have friends to play with.This is a open world game like GTA.Nothing much to say about this game,try it out yourself or watch some videos.
Warframe:The game is awesome.Remember that this is not PVP,it is PVE.Make sure to watch some videos about the Mods and all before messing with them ingame.I am sure you wont understand how to use them wiithout watching videos.
And finally
Ghost Recon Online (I know that you are palying this but still.....): I palyed this game for around 8 months,started playing this when the game is in closed beta phase 1.I have over 1000 hrs of gameplay in this game.It used to be so much fun to play untill the game went Open Beta.This game have the worst developers ever,till now they did not implement any patch without making the game worse.They increased the cost of weapons for no reason and the assaults can kill a sniper from long range more quickly.And finally,this game is not optimized for dual core processors.