Just wanted to pose this question to the wiki community as You Tube users seem very biased to a happy end for Shepard. I personally prefer the original (with the extended cut) because my sacrifice makes everyone getting a new tomorrow (except the Geth or EDI if you chose destroy) feel all the more impactful and my goodbyes with the crew in London all the more tear jerking. I feel the happy ending mod cheapens an already standard ending because it feel throughout the whole of ME3, Shepard is being set up to die, with his/her PTSD dreams about that kid and determination to do whatever it takes to stop the Reapers (Renegade or Paragon). That felt nicely rounded off by making the ultimate sacrifice to purchase a tomorrow for the Galaxy.
Please do chime in.