Ones that belong to me personally:
Nintendo GameCube
PlayStation 3
Nintendo Wii
GameBoy Colour
GameBoy Advance SP (that no longer plays sound)
Nintendo 3DS XL
Belonging to the family:
PlayStation 2
Previous:
Nintendo 64 (given away to my sister)
Nintendo 3DS (destroyed because loaned to friend)
We got the GameCube back in 2003. Technically, it was a gift to the family, but it eventually got passed down to me. The PlayStation 3 was a gift from my mom back in 2009. The Wii was a gift from my sister back in 2007. I bought the GBC for $5 a few years ago, merely for collective purposes since I already owned a GBA SP. Speaking of which, my grandma bought the SP about 9 years ago, and then randomly gave it to me! The 3DS was a gift from my mom that I got a little less than 3 weeks ago. :3
The N64 was the first video game console we owned, and also the first that I ever played. Unfortunately, we lost most of the good games, so we just got rid of the system. Most of the games we had, I have now on the Wii VC anyway so... The 3DS was actually a purchase that I made myself after raising a lot of money. Unfortunately, I made the mistake of loaning it to my friend, who "accidentally" let it get run over by his dad's truck... At least I got my money back for it!
The PS2 was a gift from a different sister. It used to belong to them, so they gave it to us!
Out of all of these, I think I would have to say my 3DS is my favourite console. For various reasons, though the main one is the library and the amount of features the system has. I never get bored playing it! Excluding handhelds, my favourite is the PS3. It also has a great library, and I can play online with friends... for free!
I play the 3DS most... excluding handhelds, I play the PS3 the most. Even though I hardly ever touch my consoles. The last one I played was my PS3, about 2 weeks ago.