fscott, do you mean easy mode as in hitting the button for auto takeoff in your setup? Otherwise, you have to give some rudder input to get up safely in AH. Granted it's not as much as WWII, but it's still there.
quick disclaimer, the following is completely my opinion, based on what I perceive in the sims while I'm flying.
Air combat in WWII is fun, though a bit "arcadish", IMO. It's fun because a 1 on 1 can last a LOOOOOONG time in WWII, heck even multi plane furballs last awhile. Right now, it's just two different styles of fun between the two games. I enjoy playing both, and dogfighting in both. I like the immersion from WWII. If I'm in a Spit, I know I'm going to be shooting at 109s and Stukas. In AH, I have no clue what I might run up against. AH to me is "harder" because there's more to keep track of. WWII is much harder with gunnery (at least it is for me) however. In WWII my problem is hitting the planes with enough .303 lead to knock them down. In AH, my problem is dealing with the player in that other plane, judging his E-state, my E-state, knowing how to react to his actions, knowing when to make him react to may actions. AH requires a higher level of SA than WWII (where it seems like you only need to know if someone is on your 6.) So to me, they are both fun in different ways. WWII gives me a immersive roleplaying environment; AH gives me a mentally challenging environment.