@EA_BlueberryNortheast/southeast corners of the D1/D2 nodes (in the building complex) on renewal, to be specific the grassy area northeast between the building and field and the parking lot/border of the farmland area southeast.
Happens in both AOW game modes, if the building is contested and you respawn on either point, you'll generally end up spawning in one of those two relatively close zones and parking a vehicle or some infantry at either side is a good way to make sure nobody can reinforce the points via respawns. (NE is safer due to the south side of the building being open and you can lob anti-armor at things without needing to get exposed on the roof).
So far that's one that's really stood out, especially in breakthrough due to the troop concentration in a small area.
Edit: as for maps which spawn you in the open and leave no cover that's a whole other list, if it's actually wanted i'm sure we can note spots and report them as well.