I'll take the current collision, with a change to the notification. I fail to see how a parked ostwind, or a plane sitting perfectly still on the runway, can ram another plane.
I know it's impossible for real-time collision modelling, but how about cutting down on some of the improbable events. I've been notififed that I've collided while parked in an ostwind, stopped on a runway, and AFK on auto climb. In all 3 instances, I received the "You have collided" message, when it would seem quite improbable that I rammed anything while parked, stopped, or without maneuvering.
My connection isn't great, and I certainly lose a lot of rams. While in a HO situation where 2 planes both view a collision, the faster conn may lose, I doubt that's the case of the majority of collisions in AH.
And yes, you can "exploit" the collision modelling. If there were realt-time collision modelling, you'd see many more intentional rams. I'd hesitate to call it an exploit, however, as it's not a great deal different than a deflection or lead shot. Get to where the other guy is going first, and he'll likely see you getting to that point in space at the same time he does.
Suffice to say, I can take the modelling, but the notification irks me.