I only voted for one: encourage creativity by rewarding deck diversity - but I'm not sure how that gets done. All the reward I need is already there - I don't find a whole lot of fun in downloading a decklist and playing it as is. Also, I believe a lot of players would feel the opposite and be perfectly happy running some combination of cards someone else had to sweat and scheme and practice/test.
The internet is great for researching cards and learning tips and rule interpretations, but it has lead to some degree of lazyness in deckbuilding imo. If 80% of the players think "If I wanna win, statistics say I have to play one of these three decklists to have a chance", it makes sense that 80% of the top 8 finishers at the highly publicized and followed pro events will have a large % (maybe around 80%, all things being equal?) of players who played one of those three decks. When what those statistics usually say is "those three decks give a slightly better chance, all things being equal, and considering only the ten or so decks you are most likely to face".
It's been less than two months since The Worst Deck Ever was banned (one particular cat, anyway). Doesn't it seem waaaay too early to ban a card like marvel or scrounger? There are several one card solutions in standard, most of them useful in plenty of other matchups.
Maybe each new large set should live in a probationary period while it is played limited only (at sanctioned events). Then it could get released to standard, then modern after it's block rotates - if no terrible interactions are found with too few chances available to
disrupt in each format. Of course, that would probably mean much lower sales on new sets as older format players wouldn't be able to use the cards for some time, so that is only a 'wouldn't it be nice if they could' idea. I guess the whole ban thing is a
gamble now, so perhaps it wouldn't be so different.
Anyway, I like the idea of there being more reward for a diversity of decks that a majority of players have fun playing. Can't see a negative to that for anyone.