That's the fun of guns, you know, dreaming about one chambering or the other.
Of course the 270 Win. is very good as its proven and popular.
When I started out in the early 50's we could get all the 30-06 ammo and rifles we wanted free from our club and the DCM. It made no sense to bother with the 270.
Of course now I have a couple of .277" rifles. I shot a big deer with one and bought a handsome 270 for its stock.
Wish it were a 30-06!