Very nice AH2 video.  I liked the visual effects and music.
Yeah, IL2 FB is a very nice single player game.  It also probably gives you more immersiveness as far as the graphics and flight/damage models go.  However it does have drawbacks.  One there is no massive mulitplayer.  There are a few servers which host up to 16 players.  There are no SEA events.  The gunnery in my opinion is weaker than AH2.  But it does offer a very nice ingame film recorder which you can go back, look at, and edit into movies or short clips.
You can find some very nice IL2 FB videos here: 
http://pauke.ee.ethz.ch:8732/oberstguncam/Frameset/index2.htmI particularly like the movie Bellum - towards the bottom of the list.  Very nice story line, music, and visual effects. 
I have both IL2 FB and AH2 so I'm happy.  I find myself using IL2 FB to mainly shoot down the computer while setting up some quick missions.  I also do a little bit of the movie making =)