Just spent the past two and a half hours or so reading through 12 pages of this topic... not fun. Also, it doesn't look like anything of value has even been accomplished here. Like seriously, there's still a split with two different groups here, one group embracing a large variety of stages, and the other group still huddling around their tiny, tiny five-stage selection of basically "FD + Ferox".
Personally, I'm with the former. While the stage selection for Smash 3DS has its fair share of really ****ty stages (Mushroomy Kingdom came back? Really?), there's also some cool new stages like Reset Bomb Forest and SNES Mute City, or stages that have improved older stage concepts, like Spirit Tracks basically being a more playable Big Blue (Melee). The exact reason I'm so anxious to get into the live tournament scene and stray away from online matches is because, without swapping Friend Codes, the only modes available are "turn all the items on and play inferior 2-minute timed matches" or "have fun sucking on Final Destination all day long". I mean don't get me wrong, For Glory mode was a great start, it just gets really stale really fast. I've come to the point where I prefer beating on CPUs with a healthy stage selection more than I want to actually get practice against other humans in, and it's only been a week since release.
I guess my general opinion is that I'd highly appreciate a more dynamic stage selection, and it's great that some of the community is embracing this notion as Smash 4 is a new game in its own right. It's "Smash 4", not just "the fourth Smash Brothers". However, I honestly can't tell what the general popular "opinion" is concerning legal stages, if there even is one. As I said before, there's still this huge divisive split in stage opinions. I may not be the most qualified person to say this, but even from a spectator's perspective there's no way this can be healthy for the future of the game's competitive scene.