I was in WB for several years, quit a little bit after HT and PYRO left, and started AH about three months ago.
I was in Solomons (I was Allied XO under Tone in that one), Pointblank, etc.
I'm unfamiliar with what has gone on in WB the last 1-2 years scenariowise.
It's pretty clear that over the next couple years, I think, that AH scenarios will surpass WB (particularly if WB3 is really delayed.) The terrain editor, player-controlled fleets, ground vehicles etc. will go a long way towards that. RIGHT now, I think the CM tools and such are a bit behind WB. Again, I'm a little uncertain of recent WB developments.
I was in Afrika Korps (the recent AH large scenario) and while it was enjoyable I think I had more fun in, say, Solomons (mainly because I was in a command position in that and big scenarios were more "new.")
But I strongly suspect in the next year AH scenarios will surpass anything WB ever did. More planes will help that, and it looks like the additions will be rapid. Even Afrika Korps was missing a lot of planes it should have had.