[quote=@Webmaster]
<Snipped quote by Spiritblitz>

Data: How do each of them differ?
[/quote]

Each has a different build, some range from small but quick, large and heavy damage, in the middle, a mix of different alloys and metals. They are like different kinds of humans...for a reference, I guess. 
*pulls out a hologram of a list of all the mech, the list of mechs also has the main uses and how they are in fights for each mech*