Rate your consoles and handhelds 1 out of 10.

 I own a Wii and I would rate it a 7 out of 10.

xbox 9/10
GC 8/10
DS 8/10
psp 6/10
wii 9/10

Snes-8.5
Nintendo 64-6
Gamecube-5.5
Ps2-7
ps3-4.5
Xbox 360 -2
Wii-6
Ds 10
Dreeamcast-4
Gba-7
Gb-5
Psp-5
PS1-7
Saturn-2
PC-9

nes-7.5

This is based on the number of games on the system that interest me.

Xbox 360 9.5/10 (Rrod got me twice, which was extremely annoying, but not enough to drag the amazing game content-based score down too much)

Wii 6/10 (Very intuitive title, and I adore SMG, Zelda TP and MarioKartWii. Unfortunately, outside of those titles I've yet to find something that interests me, with Boom Blox being a major disappointment)

DS by proxy 8/10 (A solid all-round handheld, but I'm primarily a home-console gamer.

Edit:  I didn't realize we could put systems from other generations:

Nintendo 64 10/10 (simply some of the best games in history)

PS2 (I didn't own it long enough to feel I can make a valid interpretation of its quality)

Master System - 3/10
MegaDrive - 5/10
N64 - 9.5/10
PS1 - 6/10
Saturn - 4/10
PS2 - 7/10
Xbox - 6.5/10
Wii - 8/10
DS - 9/10

SNES - 10
GEN - 7/10
Gameboy - 8/10
N64 - 8/10
Dreamcast 9/10
GCN - 7/10
GBA - 7/10
Wii - 9/10
DS - 9.5/10

Xbox 360-6.5 Games are great, I've been having a blast with Halo 3 for quite sometime now but I've gotten a RRoD once and the interface pisses me off because it's so disorganized and laggy. I also don't like having to pay for online.
Thanks to the sick games that have come out for it, the score isn't bad.

PS2-9.5 I literally own 30 games for it, nuff said.

PS3-8 I had a great time playing Resistance online and met some really cool people over the PSN that I still stay in touch with, but I'm always waiting for something to blow me away. I'm hoping MGS4 or Resistance 2 will do it for me. My only complaint is the lack of software but everything else is great.

NES-10 It was my dad's and I was only 4 when I was playing Supermario 2 and 3, but it got me into gaming and was the most fun I'd ever had gaming.

Xbox-5 If it wasn't for Halo 2, I'd give it a 2 

Alright, from the beginning...

NES 9/10
SNES 10/10
PS1 10/10
Genesis 7.5/10
N64 8/10
PS2 8.5/10
GCN 8/10
360 8.5/10
PS3 9/10
Wii 3/10 (owned it for a month)

On to handhelds...

GB 9/10
GameGear 6/10
GBA 7.5/10
DS 8/10
PSP 8/10

Wii - 9/10 Its library isn't quite developed yet, but the games it already has are some of my favorites. I'm looking forward to so many upcoming titles, and the addition of the VC and channels are enough to make it my favorite console.

XBox - 7/10 It has some decent software. For some reason it never appealed to me as much as the other two last gen consoles.

Gamecube - 8/10 Nintendo's my favorite developer, so any system that has their games gets a good rating from me. I think it has the most comfortable controller from last gen as well.

PS2 - 8/10 The PS2 gets a good score by default. It's library is huge and filled with games I really like.

I'm not rating anything before that because I don't really remember well enough to score them. If I had to rate them in order of how much I liked them, it would go something like:

N64
NES
Dreamcast
SNES
Genesis
Saturn
PS1
3DO