I think, thematically, one of the things that I would most like to see is for mechs to spend far more time in a seriously damaged to crippled state, which a large internals buff would help with.
When a lot of us think about mech combat, we tend to think about limping around with half a machine left, only a couple of weapons, and bashing on each other until finally the last enemy falls. That doesn't really happen now, we generally go from "Everything's good!" to "Red CT/Side torso armor" to "Deep red internals/dead"
e: A larger ratio of internals to armor buff also indirectly helps LBX weapons, MGs, and other crit happy weapons with spread, like SRMs.
Also along these lines, one of the things that I would realllly like to see, which was mentioned by a couple of PGI guys on their friday stream (I can't take credit for this idea, but it's a damned good one), is applying a damage reduction modifier to certain mechs, to compensate for hitboxes. Think like the ones applied to sections with missile doors. All of us know what a hunchback looks like, and absolutely expect it to have an iconic hunch, but that huge SHOOT ME HERE sign is a MASSIVE handicap, compared to something like Centurions. Going through and evaluating mechs based on their hitboxes, and putting varying levels of DR on each section would help out a ton in terms of evening out relative goodness of different mechs. An Awesome might not be so strictly inferior to a stalker in every way if it's huge slab sided left and right torsos got some extra DR on them.
Edited by Gwaihir, 26 July 2013 - 12:32 PM.