for me it was my magmar cuse i need a magby for hg ss.
Mostly pokemon like empoleon and torterra and infernape.
Charizard, and by complete accident. XD
A Missingno. My game DIED.
Phione. Tried for with my Empoleon, but I realised 2 days later that Empoleon was a boy. LOL!
All the starters except Blaziken and Swampert (Still need to PalPark those guys.) My Ditto are very busy (I have one for each nature except for four of them.)
most recently was a piloswine
A Spiritomb for SS.
A cyndaquil in platinum.
Victreebel oddly enoungh :/