I don't want to make this all about how Steve is the worse character is the RE series - but he is.
For these reasons:
1 - His showboat attitude is too silly for the RE series. The leaps through windows and steals from Claire because he thinks it looks cool. He is literally the child she is babysitting.
2 - His voice actor is a CHALLENGE to listen to. The voice fits the character to a degree, but he is over the top complainy and whiney.
3 - His transformation is the least effective and frankly the ugliest in the series. He turns in to Killer Croc with hair. Disgusting. Compare that to the other designs in the game: The Tyrant, Nosferatu, Bandersnatches, Alexia - he looks like a ten year old designed him. And then he inexplicably transforms back in to normal Steve to say good bye.
4 - His death is shoehorned and meaningless. There is weight to the sequence, but his character isn't good enough to be granted a more meaningful death. Piers' death was a memorable death in RE6. But Steve. Not so much. The writing is cliche and if he started as a better character, maybe it would add weight.
Anyone can feel free to have their opinion - but rethink Steve. For the sake of the series!
1: maybe you forget that Steve is 17, and that he is a simple kid, he act like that because in reality he is still young boy, I don't see any problem whit that, and he try to impress claire
2: yeah his voice actor could have been better, at least he had good voice in darkside chronicles
3: I like his design I don't see any problem whit it, also you are missing the meaning of him returning back to normal, Steve loves for claire manage to beat the t veronica virus itself and he returned back to normal, this is a powerful scene, also if you are searching for a "scientific" explanation, wesker say that emotion can affect viruses transformation
4: his death it's emotional and devastating for claire character, not all people in life die whit a meaning or as a hero, unfortunately Steve die whitout managing to kept his promise to claire, also this kind of death let you understand how Mercilessly alexia was and how real life can turn out... Steve was just 17 years old but his life was destroyed whitout a meaning because of evil people like Alfred and alexia, and his body will continue to be profaned by wesker... Probably you never saw horror movie, but many times people die whitout a meaning because evil win, like in real life, assassin kill people whitout meaning because they are evil and maniacs
The evil alexia did the same to Steve and Steve didn't manage to do anything, but at least he manage to protect claire and confess his love to her in the end...
I like him as a character there are worse character in resident evil series I'm my opinion like the flat and useless Helena harper and Sheva Alomar and many other , just different opinion... There is now way I'll change my mind about Steve