Berix is tall and has the best color scheme of any blue set since Gahlok in 2002. She is the second-best Agori. I also really like her yellow head and her helmet. I have no objection to the colo gold in the set, although perhaps the shield it is part of could have been a better shape.
Zesk is beyond doubt the best Agori. Seriously, I recommend him. His helmet is very cool and it kind of makes him look like a puppy. The tail is perfect, and if you build him like the Zesk Review Rebuttal suggests, his body looks stone-cold awesome. The color scheme is perfect. Overall, he can look like a beast, a demon, a monster, or a simple puppy. Unlike how previous reviews have claimed, he is indeed very posable. Perhaps the head is restricted, but only to the degree where he can't look up. He can still look from side to side. In the meantime, he comes with a great variety of poses. You can pose him with his legs sprawled out, standing on three legs but lifting up his front paw menacingly, pouncing, ready to pounce, and kicking his hind legs like a bronco. Surprisingly, in the last item of this list, he actually has considerably good balance. He looks good from multiple erspectives and I have not found a pose that I didn't adore yet.
Now all I need is a nickname for him...How about Dutch Dog?