I had/played all the Ace Combat games, save for the GBA and 360 games. (GBA version didn't look that good and I don't own nor have access to a 360.)

I played the hell out of 4 and 5. 2 and 5 are my favorites overall. 3 had some things going for it (which they started kinda continued with in 4 & 5) but I didn't really like the interface and the changes they made to the non-Japanese editions. (Missions and gameplay were fine, but I hated the HUD.)

Patiently waiting on Joint Assault at the end of this month. Have it on pre-order with Newegg ^_~

I haven't gotten deep into Oblivion yet...Despite having gotten it...Twice (when it first came out and more recently when Stardock/Impulse started carrying it a couple weeks ago.) I need to find the menu mod for it, though: the console-friendly menu system is annoying as hell.