Based on the current state for each publisher:
Ubisoft > Bethesda > Bandai Namco > Sega > Square Enix > Activision > EA
I figured I'd post some details for each publisher:
Ubisoft- They have released some great games this generation; Assassin's Creed Origins, Far Cry 4, Far Cry Primal, Watch Dogs 2, South Park The Fractured But Whole, Child of Light, Valiant Hearts; and have even more games that interest me on the way; Far Cry 5, Watch Dogs 3, The Crew 2, Beyond Good and Evil 2. They haven't had too many controversies this generation, they haven't tried to force pay to win micro-transactions into multiplayer games or anything like that. They did hit some rough patches game wise, AC Unity and Watch Dogs 1 for instance, but the good games they've released this gen more than redeem them for that.
Bethesda- Bethesda is great, plain and simple. They have a great slate of studios including Bethesda Game Studios (Fallout, Elder Scrolls), id (Doom, Rage), MachineGames (Wolfenstein), Arkane (Dishonored and Prey), Tango (The Evil Within). The outlook for them is even better in the future, Bethesda Games Studios has done some pretty serious expansion, both at their main studio and at their 2 new studios in Montreal and Austin, which should mean we'll get games from them faster than every 3-4 years, and their rumored new IP Starfield sounds great. Bethesda's marketing head hinted at Rage sequel in the near future from id, and a Doom sequel is surely on the horizon as well. Arkane sadly is taking a bit of a break from Dishonored, but I have high hopes for whatever they're working on next. MachineGames has really turned around the Wolfenstein series and I look forward to seeing what they do next with the series. Tango is in a bit of a rough spot after Evil Within 2 flopped hard, I have a feeling they'll be doing a new IP next instead of a 3rd Evil Within. Controversy wise, Bethesda's only real error this gen was Creation Club, their paid mod program, which isn't great but nowhere near as bad as what some of the other publishers have done.
Bandai Namco- They have been making some smart moves recently, moving almost all of their teams/series over to Unreal 4, which has allowed them to go almost fully multiplat. Loving the fact that they're supporting Xbox One in a major way now. Can't really think of any controversies they've been involved with.
Sega- Historically Sega was once my favorite publisher, but in recent years they've done alot to piss me off. They are sitting on a treasure trove of classic IP's without reviving them or even doing HD remakes for some games they have that deserve them, such as Shenmue and Skies of Arcadia. Now we hear rumors that content from these IP's are being dropped from the next Sega Kart Racing game, the last series that had content from these classic IP's. Seeing Sega ignore their history pains me greatly. On the plus side, Sonic Mania was great, they have plans for movies/tv series for many of those classic IP's I was referring to which I hope is a good sign that Sega plans to revive some of them. Another good thing is that they've been slowly increasing Xbox One support this gen, we have Valkyria 4 and the Catherine remake heading to XB1 in the near future, on top of the already fully multiplat Sonic, so I'm hopeful we will get even more Xbox One support from them in the future, including more Atlus games.
Square Enix- What can I say about Square. They've frankly been a huge disappointment this generation. On the Japanese side of Square, they are painfully slow, Final Fantasy XV and Kingdom Hearts 3 were announced at E3 2013, FFXV finally released Holiday 2016 and Kingdom Hearts 3 is set to release sometime in 2018, while Final Fantasy 7 Remake was announced in 2015 and still has no set release year. Even worse, the Japanese side has ignored Xbox One almost entirely, only announcing 1 game for Xbox One since E3 2013, which is quite annoying considering FFXV sold well over 1m on XB1 (approaching 2m lifetime with digital sales). FFXV was a mediocre game, nowhere near as good as what we knew about Nomura's original plans for the game when it was Versus 13. Nier Automate was good, but sadly is still PS4 exclusive a year later. The situation is better over in the western division, but not by much. On the plus side, the Tomb Raider Reboot series is great, and has a 3rd game being announced tomorrow that I'm really looking forward to. On the downside, Square's handling of Deus Ex has been piss poor, thanks to their poor marketing decisions Mankind Divided flopped hard, which has put a 3rd game in the Adam Jensen series on the backburner while Eidos works on Marvel games. Meanwhile, we're still waiting on a proper sequel to Sleeping Dogs, fast approaching 6 years later, our only hope now is that Square has a sequel in development that they plan to tie into the Sleeping Dogs movie which is releasing in 2019. Suffice it to say, Square Enix would be at the very bottom of my shit list were it not for the fact that Activision and EA are truly awful.
Activision- Activision is honestly pretty pathetic nowadays. Their only AAA studios are the 3 CoD studios and Blizzard. 1 of the 3 CoD studios sucks now and has alot to prove to get back in my good graces. Blizzard has Overwatch which is great, but I really couldn't care less about their other IP's. Activision has Destiny as well, but I hate Destiny, and their 10 year deal on it will expire soon anyway, leaving Bungie open to go to another publisher if they choose to.
EA- EA is so bad recently they're almost in a league of their own. 2 of the biggest controversies of 2017 were in EA games, the Pay2Win lootbox controversy in Battlefront 2 and the Andromeda unfinished game controversy. Most of their studios make sports game which I hate. They have nearly destroyed Bioware; once one of the 3 best singleplayer WRPG devs, they are now reduced to making a Destiny clone with Anthem. Visceral has been shutdown by EA now, joining a long list of developers that EA has destroyed over the years. They've wasted the Star Wars IP, we are now 4 years into the 10 year exclusivity deal and all we've gotten are 2 Battlefront games, Visceral's Star Wars game has been cancelled, Bioware or Obsidian haven't been allowed to make KOTOR 3, we haven't gotten any RTS Star Wars games, truly an abysmal handling of the Star Wars IP.