Hi! Sorry for my poor English as it's not mother tongue.
As a Chinese college student who recently got introduced to Cosmere, I can't wait to meet everyone in the fandom.
The first Cosmere book I read is Mistborn: the Final Empire. So excited had I been after finishing it that I continued to read the remaining two books in the trilogy, staying up all night. Then I moved on to the Era 2 works, following which are Warbreaker and the Stormlight Archive.
I've just finished The Way of Kings and Words of Radiance and all I can say now is wow!
What a wild ride!
As for my favorite character, it's definitely Rashek for now. Don't know why I like him but he is hot so yeah. Kaladin and Steris never fails to fascinate me as well.
The only *bad* thing I want to say about Cosmere books is that there are too many of them. I hope to squeeze all of them into my head at once but you know it's just impossible and I still have loads of books to read.