from these numbers it doesnt appear to me that juggs are in a bad place for solos. its mainly just bad players queing as jugg because its survivability and they have no idea how to influence a match for the win. personally on my guardian in the past 100 games i have played with him im about 57 wins and 40 or so losses and i do well in most of my matches even if i lose. so to who said that maras are in a better place than juggs i believe youre wrong. the smaller marauder player pool that has a steeper learning curve cant be truly compared to juggernauts.
with all of that said, I dont think that marauders need any sort of damage increase but they would need shorter cooldowns on defensives. however, giving shorter cds on defensives could push marauder into a fotm position, and would be more comparable in impact of the match as a sorc or sin
i guess what im saying is that the way solo ranked boils down is Assassin > or = Socerer > Operative > Powertech>= Juggernaut > Marauder >= Sniper > Mercenary
if anyone needs a change its increased defensive / slight dps nerf for mercenary and sniper.