Conversions of Russians vs Byzantines.. lets see who's more accurate!

Constantine was a Roman general who wanted to be a Roman emperor. He considered himself to have a power of the Christian God because he believed that the Christian God helped him to handle his rivals and to become a Roman Emperor. He promulgated the Edict of Milan which allowed the Christians to practice their faith openly in the Roman Empire. After then, he converted himself to Christianity. Vladimir was a prince of Kiev who converted to Orthodox Christianity. He already held a higher position, so it was different than Constantine. Vladimir didn't like other religions due to certain reasons such as Islam. He didn't like Islam because he would have to give up on alcohol and certain meat such as pork. There were other religions which he could've converted into, but he didn't. I think Constantine's conversion had more meaning towards religion behind it rather than Vladimir's conversion. Pretty much, converting into Christianity brought them closer but they converted for different reasons.