Here I have compiled the three fantastic launch trailers for Mass Effect 1, 2, and 3, in a row, so you can watch the evolution of the graphics and BioWare's skill in making trailers. I think the second trailer is the best, overall. The third is a little too epic; fantastic to watch and great for hype, but it's almost silly in how 'epic' it is. The second strikes a perfect balance, and has a nice pace to the trailer.
Mass Effect 1 Launch Trailer: 0.00
Mass Effect 2 Launch Trailer: 1:19
Mass Effect 3 Launch Trailer: 3:21
For those who want to know, the song in ME2 is Heart of Courage, and ME3 is Protectors of the Earth, both by Two Steps from Hell, a production music company who makes music for trailers, TV, etc.
Also, for those who haven't played the game, there are some massive spoilers in the comments.
