I hope mods believe we can have a decent discussion/debate on the differences between these two trailers, but the main reason I think several of us (me included) have felt the need to compare them, is simply because they came out within 12~ hours of each other. I find I like both, but I like the ESO trailer more. I've seen some EXTREMELY strong opinions on both sides of the argument (computer forum regulars getting angry at each other, it happens, hopefully that won't happen here!) but I thought, why not see what more people think? Think hard, watch them both a few times if you have to, look at them critically, from multiple perspectives, pay attention to story, CGI, sound.
One quick comparison I make though, is that the SC2 one does machinery AMAZINGLY well, like it looks real, pretty much, but Kerrigan's face at the end looks far more CGI than for instance the elf in the ESO trailer at the 5:00 mark. This elf looks real, to be honest. I'll link a picture of them compared and the trailers.
PLEASE keep this civil! Mods, I hope you don't mind, I just want more opinions from a comparison perspective!
Starcraft 2: Heart of the Swarm
The Elder Scrolls Online
Please vote in the poll and tell us the pros and cons of each, if you have any!