I'll try
OK with SDOE ww1, while more limited (so far) in scope, generally it has better quality control across the board. While there a few 'older' planes that need a little attention, most of the planes and other add-ons are up to the same level of polish. (don't forget to check out the new hi-res Albert terrain, plug, plug
)
With SDOE ww2, way more stuff to fly, drive and do but while many items have pretty good polish to them there quite few other that, while they are playable, they definetly need some work to finish them and/or get them up to date.
If you are looking for immersion, then you may want to try my Sweet La Rhonda P-51C Campaign I did for ww2. Immersion was the #1 goal for that campaign.
And there are new hi-res terrains for ww2, like Berlin
(more shameless plugging!)
In a way tho, it also depends on what you are bigger fan of too
What the hell, let's have some screenies!
does that help?
hip63 :p