Your stuff looks very nice, however it is all geared towards film. Your work shows that you are a competant high poly modeler, and you know your way around blenders shaders and rendering, however those two skills have limited use in games. Important skills for games are low poly models, efficient uv mapping, and texturing with diffuse/texture, specular, and especially normal maps.
We generally look for people who can model, uv, and texture, since they can fully create an asset and don't have to wait on other people to finish part of it. That said, exceptions can be made in some circumstances.
I'd be in favor of giving you a trial (its not up to me), but from your work that is shown, I'm not sure if you have enough experience with game art.
And as for your last question, most of the team uses max or maya, and a few use xsi. The program doesn't really matter, as long as you can export out objs. However, it is preferable that people compile their own props, and it that case it might require one of the bigger programs.
