Regarding Andrew’s video, I think there are many good points being brought up and a decent amount should prompt quick and unanimous changes. One other, though, the LMB/RMB issue, should be treated with more caution than a simple “which one do you think should be default” poll, in my opinion.
For all the reasons Andrew exposed I cannot disagree that a new user’s first experience with Blender can be far from ideal because of the way selection works. However, I find the separation between Action and Selection to be a very smart and helpful thing, and simply changing the default would make new users miss out on this feature. Considering that I don’t believe anyone has any issues switching between applications after getting used to it, I believe we should try to focus our efforts in trying to educate new users in this new/different mode of interaction. If they still prefer the conventional way, by all means, go ahead and change the preset.
How do we do this though? Especially in a way that annoys experienced users as little as possible. I think one possibility is simply a better splash screen - not only with a different arrangement of the information it already contains (“Manual” should be the first on that list in my opinion), but perhaps a well visible “First time using Blender?” link that opens a (offline) short document or video that documents this major difference (and any others… are there any others?). I say short document because, lets face it, software with this kind of complexity requires that you put in the effort to be able to operate it past a certain point of adding primitives and pushing them around - so read the manual or go watch tutorials on modeling, animation etc. This short document should link to those, but before that just go ahead and explain why we believe in RMB (and any other major differences, again, if they exist), encourage the user to realize how much better it is, and explain how they can go around and change it to a more familiar setting if they prefer it. If there was a way to make this interactive it would be obviously better, but that’s some next level stuff
Experienced users can just do what they already do: skip the splash screen or disable it altogether. This avoids the annoyance of those sort of Help dialogs that many applications have that open by default on new installations (and with Blender there’s a big range of different things that a “new installation” can be).
Still not ideal, I know. But my main idea is really to try to encourage you guys to try to come up with some mechanism that tries to educate users on a better way of doing things, instead of practically forcing them to miss out on them by changing the defaults.