Mr.House wrote...
It really comes down to Anderson and how oyu as the player and your Shepard where close. I find MEHEM while a "happy" ending, a proper bittersweet ending because there is still some sadness in there and it's seen when Shepard is putting the name on the wall and walks back to the group.
I ifnd Andersons death to end the war more powerful then a forced EDI and geth death to end the war because reasons. Too bad you can't put Andersons cut dialog in that scene though 
i totally have to agree with you about the death of anderson ... anderson handed the torch over to shepard. it is now shepards turn to become the father/mother figure and the inspiration for the generations that come.
this is by far more symbolic, than placing the name of a dead legend (shepard) on the wall.
while i was at work, destilling compounds, i was thinking about the endings and mehem ...
to me, this mod is an equaliser to the other endings.
if we take the endings literally and put our dark implecations aside, control and synthesis show a relativly bright future for the individual and the socielty as well:
in control, the relays are being repaired simultaneously, throughout the galaxy - by the reapers, who know what they have to do. the created shepard-ai will let no harm come to the civilisation, it was created for, to protect. neither paragon, nor renegade will alter this premise. the citadel is also intact. shepard lives on, as the new catalyst. the only "downside", is the big ass reaper fleet, that will protect the galaxy from upstarting enemies and rogue synthetics.
in synthesis, the reapers are still around and they could repair the relays quite easily. but this would not even be a necessity. the combined interlects of the new hybrid race, could replicate the relays with ease and travel would be possible again. the citadel is not even a necessity anymore, because the need for a govenment in this new society is not given anymore. the need for a protector (reapers) is not there anmore, because synthetics are not a threat anymore. upstarting species would be part of the society, because all life is already synthesised. the only downside is, that shepard is dead.
destroy .. the geth are dead .. edi is dead, ... the relays are destroyed, ... the citadel is destroyed - shepard is most likely dead or soon to be dead - the writers is not yet sure.
rebuilding the relays is really difficult for this society. most the scientists and engineers were part of the crucible project and are most likely stranded at its contruction site. the protheans poured nearly endless recources into the conduit project and they still needed a very long time to build the pair. the rebuilding will take the most effort in this ending, because there is not much capable personal left on earth. even if we can rebuild the charon relay, we still need the arcturus relay, to make the pair work. rebuilding the citadel also takes time and recources ... same problem.
we have no protector left, who can help us with future conflicts - at some point, a new species may pop up, and threaten us again. the yagh are only one possible nemesis, we could face. in control, the reapers would take care of them and in synthesis, they would be part of the society and therefore no threat. not to mention new synthetics.
here, we have mostly downsides and the only positve aspect is, that the reapers are gone.
mehem equalises the endings ... it leaves the relay network in ruins and the rebuilding will take a very, very ling time and we will be vulnerable to future conflicts. that are enough donwsides for this ending.