Ok, I think 1) is really good and will make the game much more competitive.
Since Clemens claimed that his LFs were dropping quite strongly, I believe there must be a penalty hence, but I am not sure.
"If the flights are too close to each others they are treated basically as a single flight (but with the total amount of seats available of course), so this leads to lower sales for those flights that overlap or nearly overlap on dep. times."
1xA320 (dep. 1 time), RI 0, CI 0 = LF 60%
2xA320 (dep. same time), RI 0, CI 0 = LF 60%-penalty
1xA330 (dep 1 time), RI 0, CI 0 = LF 60%
This would let the A330 win.
If the A330 should get the same LF, we would have to either impose the same penalty on him or remove the penalty from the 2 A320s. Let's imagine that were possible to integrate into the system; we would then have to switch again as a new competitor enters the route with three dailies (diff. dep. times). Sounds pretty complex to program.
Apart from the programing, I dislike the idea of making them equal. It is a long desired first step to making scheduling a bigger factor in competition. The game has the potential to become more challenging. I regularly try to schedule throughout the day, as I find it more realistic; now, I have a further motivation to emphasize this.