Bozon,
I just picked up BoS, BoM, BoK, on sale for $12 each the other day. I've been toying with them.
Like you, I was never that interested in Eastern Front stuff, and I hated the IL2 view system. With VR now, the view system at least is not an issue.
I would have loved for them to have added VR support to CloD, but I gave up waiting.
They definitely have a graphics advantage over AH.
AH AI is definitely better.
The FM feels pretty similar to me. Maybe some subtle differences.
Gunnery feel maybe a little harder in IL2. (?)
I haven't bothered with the online servers yet. IF they try and pull all that no icon baloney, then I wouldn't be interested.
While I know everyone around here turns their nose up at the single player campaign feature, I'm pretty sure that is why everyone has heard of IL2 and very few have heard of AH.
All in all, might be interesting to toy with. I'll be interested in reviews of the Normady module. I wish they'd redo the BoB version with full VR support.