For me it all depends on the height of the rostrum...
At Batley Spenborough track for instance, the drivers position is on the top of a steel container with fantastic views of the whole track, so straight position is not relevant...
On a regular or lower height rostrum I prefer the tech sections nearer with the straightaway at the far side... I usually put myself at one end or the other of the rostrum, this depends on where I feel I need a better view of a tricky part...
I also prefer the trackside a fair distance away from the base of the rostrum not butted right up against it...