I think the people who argued that "a 48 [roughly, Townley's headstone said 1965...or were they referring to Trevor?] year old guy on a BMX" didn't fit were thinking narrow-mindedly there. CJ didn't really fit in the cockpit of a Shamal, as the storyline placed him...twice. Not that I'm racist, but I don't see very many young black guys from the hood with a pilot's license. I didn't really see Luis Lopez driving a golf cart either. But I guess the point of GTA is to do/see things that you wouldn't normally do/see, right? I mean, while keeping within a somewhat "plausible" reality that all GTAs are based in.
So these character/vehicle pair-ups I mentioned were forced together by the storyline. However, I don't recall any of the V characters being forced onto a BMX by the storyline. If it was done, it was done by the player's choice. And then they go and complain that they had the ability to do it.
But I really don't pay much attention to other people's opinions. I have this strange, uncanny ability to form my own! I don't mind hearing other people's thoughts, constructive viewpoints, but any opinion that contains the pseudo-word "sux", my brain puts on permanent ignore.
So the three characters. I never had a negative opinion on it. I knew I was in good hands with Rockstar, and they don't exactly have a reputation of producing garbage. So I looked forward to it. I know it wouldn't quite be the same, but it would be like playing GTAIV, TBoGT and TLaD simultaneously. (Google: "The Possible Trinity".) Only difference being that the three protags rarely ever had contact with each other.
Having three protags opened up a new dynamic, with new possibilities. More new things to try, and a whole new bunch of "I wonder what would happen if I made em do THIS?" like, letting Trevor into Michael's house by having Mikey hold the door open for him.
But what I wonder is... how many people actually chose their own MAIN protagonist? I'm not sure why, but I chose Mike. But not on purpose. When I think about things in my head, I think of them as "Me, Trevor and Franklin". Just caught myself doing that one day, and made me realize that I guess I relate to Michael's way of thinking, or maybe way of life, more so than the others. I'm not black a black kid from the ghetto, nor am I a tweaking hillbilly... but the game didn't have an intelligent young brunette from a broken home, so Michael became the closest thing.
I would love to see more outside-the-box stuff like this from Rockstar. BUT, not sooo outside the box that they turn into Saints Row IV (just...wow), but still staying inside a more or less "real-world" environment.
And that's just my $0.02.