I'm joining, yo! My name is Shining Raichu and my companion shall be Yoshi or I will destroy you all!
Do you prefer the classic Mario games or the modern, 3D platformed(64-Wii)?
I grew up with the old ones as well (my first Mario game was Super Mario All-Stars on Super Nintendo) and so I've always loved the classic 2D games... but in the end I think I get a lot more enjoyment out of the 3D roaming ones. Super Mario 64 is to this day my favourite Mario game of all time (even though I never owned it personally until they re-released it on DS) so I'd have to go with those. Mario Sunshine was awesome too XD