From: Chicago, Illinois
I have played both pretty extensively. I played WITE when it came out, and I think had a couple pretty popular AARs and was a frequent contributor here on this forum. And I like WITE alot still, it's a very good game.....
...but WITP_AE is better. It's much more involved, and much more complex, but has a strategic depth that WITE doesn't have at this point.
Maybe it's the nature of Eastern Front warfare, but WITE right now devovles into a WWI smashing after awhile, with some mobile breakouts, but still centered on a single line along the whole front.
WITP AE isn't about front lines.....there is a strategic depth beyond that, that centers more on supplies, the operating radius of various aircraft, and the fleet.
It took 6 years though to get WITP-AE to that level of depth. Given a couple more years of development, I think WITE and it's future iterations can get there......and will. I am just impatient and dont' want to wait.
WITE is a great game, but WITP-AE is better. That could absolutely change down the road, to the better for WITE, but that's the way it is now, IMO.