most of our "geeks"
are not geeks, but brainless Git-fanboys. Ignore juniors totally, they must not have voice
From personal experience I can conclude that both systems handle big binaries almost equally mediocre with with a slight advantage from SVN (for pre-1.7 versions, now I don't see at Git side at all):
- the same modified file, committed to repository, increased the size of the SVN repository slightly smaller than Git-repository
- I never had broken SVN-repo with big files, with Git it happened noticeable amount of time
For your case best choice will be Mercurial with LargeFiles extensions (and special differs|mergers|viewers per file-types, encoders|decoders are additional bonuses, which Git|SVN can't offer)