I also recently had a Final Fantasy 7 marathon. I played Crisis Core, Final Fantasy 7, (watched) Advent Children, and Dirge of Cerberus, all back to back which was quite an experience.
Uncharted 2: Among Thieves - Game of the year! I'm just a few trophies away from platinum (I finished it on Crushing the other day). Phenominal in every way.
Metroid Prime Trilogy - I like the Wii controls and all the games are great so I'm loving this.
Batman: Arkham Asylum - So much better than any other Super Hero game I've played. Finally someone got it right. Incredible game.
Final Fantasy VII: Dirge of Cerberus - The great production values and fondness felt for the characters by FFVII fans isn't quite enough to make up for the uninspired gameplay.
That's it for me, pretty dry until my birthday/Christmas next month and I get all the great games that have and are coming out this holiday season. I really want to play through the campaign of Modern Warfare 2, and New Super Mario Bros. Wii looks awesome. Anything else good out there?