I don't know how I missed this...
I've never played against Bretonnia, but I like their medieval setting...
Peasants with a human statline?
I'm not sure. Is there any difference between peasants and men at arms in the armybook, or are they the same thing?
Peasants are supposed to have no skill with weapons whatsoever and WS 2 portrays that well. On the other hand, men at arms were professional soldiers during the middle ages and should have decent weapon proficiency.
It's just like the Empire. I still don't understand why Empire's professional soldiers have WS 3. Swordsmen used to have WS 4 and I4, but they got nerfed and more expensive. And swordsmen are supposed to be the best and the most talented of all standard state troops. I'm fine with spearmen and halberdiers being WS 3.
Don't know anything besides fluff behind Questing and grail knights, so I have no comments.
Though I'd like to see multi-part plastic models for those guys. (afaik they were announced)
Current questing knights look fine, but grail knights look kind of dull.
Battle pilgrims?
Looks like your wish will be granted. They will be thrown out in the upcoming book, according to Warseer.
But that saddens me. They're a fun, crazy and colorful bunch. They remind me of Empire Flagellants. The models are great!
Even though their rules suck (from what I've heard).
Improving their rules and point cost would be a better option if you ask me.