I am more of a Magic player than a gamer (if you're not counting console games).
CCGs:
Magic - 2.6 (based on Gizmo's standards) - mostly just because the decks I'd like to use all really suck.
Pokémon - 20, in that I have never played; at one point I had some money on me and decided to buy a booster so that, in case I got a valuable rare, I could sell it and recoup my losses. It was a holo Nidoqueen, which now sits uncomfortably under my bed somewhere.
Monty Python and the Holy Grail - 0 (now that I know of someone who plays this game [Ura] , I am instantly inferior to him. Without you, I could have legitimately given myself a 10...)
RPGs (non-console) : Virtually none
My brother plays Warhammer 40k, but his attempts to get me started have been unsuccessful.
PC games:
Very few, and I only play them when my brother is on the TV. None are online, so I won't bother to list them here.
Console games:
PSone:
Final Fantasy IV (PSone remake) : 1. My brother owns it, and we've only logged 3:30 on it.
Final Fantasy VII: 9 (I think. Using multiple Level 4 Limit Breaks on practically every boss [even on Disc 1!] is a good feeling, though).
Final Fantasy VIII: 7 (This game annoys me. Something about sending 30 giant rocks down from the sky every 10 seconds rubs me the wrong way.)
Final Fantasy IX: 7 (I haven't played this for very long either, although my brother beat it.)
Final Fantasy Tactics: 6 (I'm OK.)
Tekken 3: 6 (I don't know what an EWGF is.)
Jade Cocoon: 8 (I was the only one on a massive game message board to have discovered a secret minion.)
Rayman: 9.99 (unfortunately I'm not perfect). I am the MASTER at this game (the PS version, that is). Anyone who challenges me in versus mode will be beaten, even though there is no versus mode - I'm that good.
I have a bunch of other games, but I don't play them very often.
PS2:
Gran Turismo 3: 3 (we got it about a week ago, but I'm bad at any course except the ovals, and I would certainly lose to Gizmo, who is the only person to have mentioned it)
Zone of the Enders: 0.0000000000001 (on alternate Tusedays). I am ABSOLUTELY HORRIBLE at this, which is compounded by the fact that my brother really likes this game.
Metal Gear Solid 2 Demo: I haven't checked the konami website to see my ranking, but I'm probably near the bottom, and definitely nowhere near BIG BOSS.
Those are all the PS2 games I own.
Other:
Chess: 3 (I beat my dad most of the time, but that's about it.)
Rummikub: 4 (A weird game not unlike Rummy but with tiles. Not many people I know play it.)
If another common game (like Poker or something) is not listed, presume that I'm bad at it.