There is no standerdised sothern. Yes y'all came from the contraction of 'you all' but as language do, regardless of rules and guidelines, it changes to fit where it's needed. ie. Lol.
https://en.m.wiktionary.org/wiki/all_y'all
https://www.nytimes.com/interactive/2014/upshot/dialect-quiz-map.html
Anywho beef : not a fan of eland. Did not think vin/eland should have made it past the end of book one. Definitely should have ended mid book two. I didn't care much for Zane but I did like him being there to facilate vin's character growth. Would have been interesting having book three having vin and eland being forced to work together despite bad blood.
Potential lightweavers having a high mortality rate. (Including Tien)
Pacing of the kolinar job. Holy crap that was a grind.
Spook. Just not a fan. I feel like he was just another platform for main characters to rebound off of. (Like Zane).
Bands of mourning coming hard and fast when twinborns have not even been decently explored. Before new concepts/magic has been introduced.
Kaladin just understanding proper cosmere terms while in shadesmar without any reason. Shallan was at least a scholar.
While there are language barriers on roshar, they fit right in when they arrive on shadesmar... As if the language of shadesmar was alethi. Ok maybe cognative realm...but still concepts and culture weren't translated.
Sidenote : I think shallans quips stemmed more from a defense mechanism. Something she could do to rebel, to keep pushing forward. A distraction. And in WoR shallan gave adolin the for a witty reply but had to console herself because he didn't have the wit kaladin had.