Rarest/Collectibles Ponies from each generation?

[Barnacle_lady]

I think from g2 the alternate versions Seabreeze and Blue Pearl are more hard to find than the G2 babies from later years. And some other variations exist too like White Pearl with a white hair streak.
G3 I would go for Rosey Posey, Bay Breeze. And I recall G3.5 the plain version of Toola Roola was hard to find.

[RoseNoire]

Aren't the G3 birthmonth ponies pretty rare and sough after too ?

[Moonbreeze]

The G2 colour variants for sure!

Blue haired Blue Pearl
Blonde White Pearl aka Blondie
Alt. coloured Seabreeze

After that probably Golden Glow II and the magazine twins.

[CrystalSnowflake]

Are you meaning ponies sold to the general public  through normal distribution or does this include proto types and special issue ponies?

[Mermaid]

I also think g2 copper glow, golden glow and silver glow are quite sought after!

Also curly, apple pie, and bubbles can get pricey from the g2 line!

[Taffeta]

Are you meaning ponies sold to the general public  through normal distribution or does this include proto types and special issue ponies?

Yeah, this bothered me a bit too. I mean, the rarest in any gen is going to be an OOAK or a variant, so the question is almost answered before it is asked...