Hmmm, where do I start?...

• Thinks that all of the Mario games are boring as hell.
• Never liked or played any Zelda games or Metroid games.
• Never played any Final Fantasy games.
• Thinks that Fly For Fun is the best MMO out there.
• Spent over $200 on Fly For Fun then got banned 3 months later.
• Thinks that all non-arcade fighting games are complete and utter wastes of money.
• Never played any Resident Evil games or Metal Gear Solid games.
• Thinks that Halo 3 is an overrated piece of ****
• Thinks that Gears of War has the worst multiplayer experience ever but one of the best campaigns.
• Call of Duty 4 is My favorite shooter.
• Thinks Assassins Creed is one of the best action games ever.
• Thinks that PS2 is the best system ever next to the 360.
• Never beat any of the GTA games.
• Thinks that the best PS2 game is Red Fraction 2.
• Hates all of the Guitar Hero games and Rock Band with a passion.

I'm stuck with a hard decision. I currently own Call of Duty 4, Halo 3, and Gears of War, and I love shooters. But sadly, I'm getting bored of most of these games and I would like some recommendations on what game I should get. I would rather not get another shooter since I need to spread out my collection. So what good action games are out there now that you think I might like?

Thanks.