People think the fictional guan yu is the same as the real they are nothing. Majority of people here just know him from dynasty warrior, the novel dynasty warriors is based on has nothing to do with history. For example zhang fei was a horrible person, he was known to commit crimes, a horrible drunk and a rapist. He kiddnaped xiaohou yuans grand daughter daughter who was 13-14 around the time and forced her to marry him and bear his children. Zhang Bao, Zhang Shao, and the two Empresses Zhang. Liu Bei in history was a deserter he betrayed his own people multiple times. I could go on and on about how wrongly shu is potrayed in the games. Its like potraying hitler as a hero. You should do some research on the history it will be a real eye opener and is really interesting.
In history Lu Bu wasn't some kind of ultimate warrior he wasn't even very skilled. The closest person in history would probably be Xu Huang of Wei.