Leaf Stone and Eevee.

[Lotos]

In before option five...

I pick option one.  It would have been nice if Eevee used that stone.  Maybe even the moon stone, but that worked out in G/S/C with the time and friendship features.  It makes the evos worth your while.

[JrDude]

Stop whining, if you look at it, it was Eevee, brown, then the evos were the primary colors, green would have intercourse ed that up.

[Friendly Hostile]

I didn't care about the new additions.  I do hate the evolution method though. It's seriously the most retarded concept thus far for Pokemon evolutions.

[Lotos]

Stop whining, if you look at it, it was Eevee, brown, then the evos were the primary colors, green would have intercourse ed that up.

But they had a Pokémon Green over in Japan, why couldn't we have a Leafeon then?

[JrDude]

It was green because the starter is green and green is opposite of red, my thoughts are they made Blue here because they were adding Yellow, so it would then be Primary colors. Which is also why they made Leaf Green instead of ~ Blue since there wasn't going to be a ~ Yellow.

[X-3]

It's kinda silly, now that I think about it. Guess they just needed more zany evolution methods.

I could care less about whether or not Leafeon was in R/B/Y, though.

[Kayo]

They didnt put Leafeon in RBY because of the whole primary colors thing. They didnt think to add it until DP, but then the eeveelutions were too complex to go back to simple stone methods. Also, if leafeon = leaf stone, what about Glaceon?

[RX-78-2]

I'm going to vote "other", since it's really a combination of a few of the choices. I had no opinion when I learned of Leafeon and its evolution method. I just though it was creative after I thought about it for a while. It's not disappointing at all. I do remember thinking about a Grass-type Eveelution while I was still playing Pokémon Red and/or Pokémon Yellow though. I just thought: "If all of the other Eveelutions have evolution methods by elemental Stones [including only the stones available at that time, and not including the Moon Stone], then why isn't there a Grass-type Eveelution? Oh well." But again, I wasn't disappointed by Leafeon's evolution method. What I would like to see is a Ground-type Eveelution, a Fighting-type Eveelution (not too similar to Lucario, more like the Digimon Renamon http://en.wikipedia.org/wiki/Renamon), a Steel-type Eveelution, and maybe a Rock-type Eveelution.

if leafeon = leaf stone, what about Glaceon?

An Ice Stone would be cool [pun intended], but I'm content with the current Eveelution method.

[Gwen Khan]

should they have done Moon stone for Umbreon? and sun stone for Espeon?

[Kayo]

Sun and Moon stone would make sense, but, alas, they did not. idk y tho lol

[RX-78-2]

should they have done Moon stone for Umbreon? and sun stone for Espeon?

I remember thinking that that would make sense. As long as enough stones are given, I'd prefer this method over friendship Eveelution.

[bluaki]

I much prefer stones to any of the other two eevee evolution methods.

Nintendo doesn't want to add an evolution (or baby form) whose triggers could have been fulfilled in previous generations. And so, they all have to implement a new feature like both friendship and time, or for D/P the specific locations in Sinnoh. They might add a new form of an older pokemon with a new evolution stone, but not with an existing one; the only pokemon I can think of to use a stone introduced outside of their generation are Lombre->Ludicolo (Water) and Nuzleaf->Shiftry (Leaf), who don't care about cross-generational compatibility because both forms are introduced in the same generation.

I would rather if they ignore the cross-generation compatibility and instead just go ahead with letting Leafeon, Umbreon, and Espeon evolve with Leaf, Moon/Dusk, and Sun/Dawn Stones respectively.

Leafeon, Glaceon, and all of the Mount Coronet-evolved Pokemon are, in my opinion, an especially ridiculous evolution method. One which does not at all take into account possible future games.

[RX-78-2]

Leafeon, Glaceon, and all of the Mount Coronet-evolved Pokemon are, in my opinion, an especially ridiculous evolution method. One which does not at all take into account possible future games.

I think it's okay; definitely unique. Maybe they'll put more "Mt. Coronets" in other games/regions so that you can still evolve everyone. Otherwise you'd have to travel to Sinnoh all the time, and that'd be inconvenient, although interesting.