This is just the core portion of the game. I did play through HoW and TotLM with the first group, just not the second one. I'll start HoW with the second group tomorrow.
My first playthrough finished on 4/27/2020 and my second one today 5/21/2020.
I copied my Vanilla playthrough for IWD: EE and it took me 168 days in the game. I had 3 Level 11 Human Paladins (no kits on any) and 2 Level 10/10 Half-Elf Cleric/Mages and 1 Level 9/12 Half-Elf Fighter/Thief.
First Paladin had 22% of kills, 426 kills, Malavon
Second Paladin had 24% of kills, 464 kills, Kraken Society Mage
Third Paladin had 16% of kills. 307 kills, Yxunomei
First Cleric/Mage had 6% of kills, 123 kills, Fire Giant
Second Cleric/Mage had 7% of kills. 139 kills, Tarnished Sentry
The Fighter/Thief had 22% of kills. 424 kills, Fire Giant
Second go around was a bit faster at 134 days in the game. I had a Level 13 Dwarf Dwarven Defender, Level 10/10 Half-Orc Fighter/Cleric, Level 10/10 Half-Elf Cleric/Ranger, Level 13 Dwarf Priest of Tempus, Level 10/13 Halfling Fighter/Thief, and a Level 16 Half-Elf Skald.
The Dwarven Defender had 18% of kills, 332 kills, Yxunomei
The Fighter/Cleric had 23% of kills, 416 kills, Malavon
The Cleric/Ranger had 25% of kills, 461, Greater Mummy
The Priest of Tempus had 4% of kills, 86 kills, Frost Giant Guard
The Fighter/Thief had 21% of kills, 385 kills, Pomab
The Skald had 6% of kills, 109 kills, Joril's Bodyguard
I don't get how my Fighter/Thief scored more kills than my third Paladin, that just odd. The Fighter/Thief seems to be about the same in both groups. First and second Paladin seen to be on par with the Fighter/Cleric and the Cleric/Ranger. I am actually surprised that the Fighter/Cleric and Cleric/Ranger were about the same, only a 2% difference. From the posts that I read, the Cleric/Ranger was a complete boss. My second Paladin was a little better than the Cleric/Ranger. I expected more, really. Hey 464 and 461 kills is awesome, can't complain about that.
So that's my compare and contrast with Group 1 and Group 2 for IWD. After I finish HoW and TotLM with my second group, I'll make a third with more flavor classes just to see how well they do compared to the ones above.