Help Please,

[Dancing Butterflies]

Are these G4 or G5 I stopped collecting at G3's so beyond that I know nothing. So names and or sets would be appreciated.

 

[CocoChipooRocks]

These ponies are all G4, which is the newest generation.
Their names (from left to right) are Rarity, Twilight Sparkle and Pinkie Pie.

http://strawberryreef.com/Index/G4index.html
This site will probably help you with other ponies.