Probably Drow Thief unless Monk or another class emerges that also emphasizes extra actions and reliable bonus damage. Thief to me feels incredibly fun and there's virtually never a time where I feel like I have nothing to do for my turn as a Thief. Drow mostly because it's extra dex and super darkvision (which is great for making sneak attacks).
Assuming no multiclass and such, very likely Wood Elf Ranger just so I could replace that obnoxious addict Astarion for lockpicks/stealth/sleight of hand proficiency. Prefer this to Rogue as a whole, I don't know if what I see in EA will survive to launch, but you can cheese so hard with ranged attacks and stealth, it's ridiculous.
That's already level 3 Ranger there.
You can basically solo entire temple courtyard like this, by the time they even spot you - you killed half of them, after that you can just run off and hide and keep at it.
And you start with all this level 1 too with Wood Elf Ranger in BG3, they give you 2 proficiencies on top.
I've also just tried this but in keeping DEX and WIS high, INT and CHA are still too low to make use of any skills related to them.
I tried to make it so that all the skills in that list were DEX and WIS ones, but there is still some overlaps like with Arcana, in that case I guess just ignore Arcana and keep Gale for that.
High Elf Wizard, ideally bladesinger, if there is no bladesinger, I'll probably go for with some fighter/eldritch knight levels mixed with pure wizard I suppose.
I hope we get some non PHB subclasses, especially hexblade. If nothing else, these will probably get modded in easily, as subclasses rarely require new assets.
I certainly hope that Wyll gets redone as a hexblade. Not only will it make more sense, he'll be a more useful companion character.
Not going to happen. His patron is a character in the game and part of his quest line.
Edit: that being said, Larian did see that they were looking into options to respec the companions, which doesn’t make any sense to me seeing as most of their stories are built around their class, so who knows.
I mean, technically the subclass means a shadowfell patron rather than an infernal one, but, eh... the rest makes so much more sense that I can see ignoring that yet going for the mechanics.