The 270 is great cartridge, why esle would everyone be comparing others to it!!
We seem to hear things like...
25-06 vs 270
7mm mag vs 270
30-06 vs 270
7mm-08 vs 270
280 vs 270
7x57 vs 270
etc...
All the time, so I guess you could say the 270 is the standard by which others are measured.