Coming from a devout Shia family, these are some things that I've noticed and thought:
*Shias tend to be very stubborn and a bit arrogant (at least I was), Shias have this mentality that their religion makes so much sense without having read any arguments against what they want to believe. I have a Shia friend I'm trying to convert, but every time I tell him about islam, his rebuttal is "Don't be a Wahhabi".
*Most Shias are ignorant about many Shia beliefs (moving of verses around in Quran, takfir of Sahaba)
*Shias believe that Sunnis don't give the Ahlul Bayt a high status (my mom thinks Shia=Ahlul Bayt, Sunni=Abu Bakr ra Omar ra)
*Shias think Sunnis are terrorists (some shia on FB wouldn't believe that Shia terrorists exist)
*Shias believe they're logical
*Shias believe they want unity, whereas Sunnis don't
*Shias believe that ex-shias don't exist, whereas ex-'wahabis' are all over the place
When I was growing up in the temple, these were the main arguments they taught us (and still go on about):
*1st and foremost was Ghadeer
*2nd Pen and Paper Trajety of Thursday
*3rd Fadak
*4th Hazrat Fatima stuck by door incident
*5th The idea that Shias represent Ahlul Bayt (Naozobillah)
If you manage to destroy one of these arguments, than that's a huge blow for Shias (for me it was)
I need some help, I do not know how to ask for help.. I am giving a dawah to a shia girl who just became shia from sunni.. Please can someone message me and help me out..
*I personally think the best thing to do is not to talk in person (shias argue too much in person), instead message of email her and ask her why she converted, then reply to her issues without using links (copy paste the important parts instead). Mention to her just as ex-Sunnis like her exist, so do ex-Shias, the idea that Shias would leave 'madhab' of Ahlul Bayt and Logic was a big blow to me.