This is the one I have the most experience with. I have four level 50s and all them have atleast some level of Alpha slotted. I generally pick either Agility or Cardiac but I'd say that most of the choices for Alpha slot can be pretty compelling and it really depends on the character you're rolling with. I like the Alpha slot a lot, the level shift might be kind of overpowered but I do like that too.
I have Judgement on three character and its pretty stupid overpowered. If there was some end game content that justified this I'd be OK with but it basically gives my Controllers a nuke and my Corruptor a second nuke. A strong signature attack is definitely something I had in mind when they first started talking about an Incarnate System (especially because of Statesmen's Lightning Powers) but here it seems we've given everyone a nuke and and pretty much all the secondary effects are kind of moot cause you killed everything with it anyway. I'm totally for everyone getting a strong AoE attack but this one definitely needs to be looked at!!
The effects here are cool but I feel like between Judgement, IO sets etc. it feels like you never really get to see them in action all that long because everyone does so much damage anyway it doesn't really matter what Interface procs you trigger on opponents because they'll be dead really quickly anyway.
I only have one character with Lore and I definitely echo the sentiment earlier in the thread that there's too many choices and in my own opinion too many of them are too specific in a conceptual sense (I got a Tsoo posse now? I got a Nemesis posse now? idk idk). There's also a very solved meta here that pretty much gravitates towards everyone having the Banished Pantheon Ravager. I ended up going for a Storm Elemental for my main and will probably pick out the more neutral choices like that, the Robotic Drones and the Phantoms (which I believe are just like the Illusion Control Phantom Army pets?) for the rest of my characters (min/maxing be damned!). Also geez these are the most powerful things in the world. If you're not already demolishing mobs with Judgement, even in Incarnate trials, you're turning them into a fine fine paste with your Banished Pantheon Ravager. While I do like a good 4 minute Hami raid or a quick Incarnate trial this one definitely needs to get looked at.
EDIT: I just got a low level Phantom for a character's lore slot and they don't have the option to be customized like phantom army? That has to be fixed.
I only have one character with a low level Destiny slot ability so while I can't speak on this one from personal experience I will say that on higher level Incarnate content or on teams with people who even just have one or two of these the effects get pretty strong pretty quick. Very much a case of "when everyone is super no one is". Most of my level 50s are support classes (Controllers and Corruptors respectively) and honestly the existence of Destiny makes me feel pretty overshadowed in a way? And I have some very highly valued support sets! (Time Manipulation, Traps and Kinetics) I think there needs to be re evaluation of Destiny so that using it feels useful without making endgame content focused around melee classes equipped with huge buffs they can trigger themselves.
OK I only have the first tier Control ability on my Controller but I gotta say I think this is pretty cool and definitely something I had in mind when I was thinking about an Incarnate System. I haven't really gotten much chance to take full advantage of the effects but I really like this one. Feels like it should come earlier too considering how strong Destiny, Judgement and Lore are. Also can we get the Control Hybrid definition of a Controlled Opponent for Controller's Containment?
I think the Incarnate System is cool and I like powers like Alpha, Interface and Hybrid when it comes incarnate abilities. The other ones are way too strong for the game we have now and unless there's something that takes advantage of that they definitely need to be looked at. I certainly believe Incarnate abilities should be strong but there should be a high difficulty that can be chosen that means something at level 45+
I am also of the opinion no new Incarnate abilities should be added, yet. Especially since we can't really create new game assets and especially especially since what we have now has made endgame content a lil too easy. Only after those particular problems are dealt with, then we can make Genesis, Omega etc.