I've put the GS video first as I really love the fact that it was pretty much filmed in a single shot, and all the band members rotate roles.
I also love the GG storyline, if you can call it that, and the Joules focus, hah, but I've seen GS more - perhaps my opinion may change in a few months.
In regards to SL, I've always loved the song - it was one of the first "new" Metric songs I heard back in the days of expecting a 2007-2008 album in the fall or something. (It must have been around there.)
Either way, here are my favourites, in order...
1. GS
2. SL
3. GG
4. SM
5. HA
The "Help I'm Alive" montage is just that, as far as I'm concerned - I wouldn't call it a music video. "Sick Muse" came about from a photo shoot, and it's not my favourite - even though it is sort of cool. SL is over GG as I like the angles, the colour - the song (as mentioned), everything like that... I still watch it with a bit of a "what the fuck?" notion, but you know...